An odd Tuesday night has turned into a busy Wednesday afternoon here at Nationals Park.

After some misplays in the field, a confrontation with MacKenzie Gore in the dugout and questions about his health, Victor Robles was placed back on the 10-day injured list today with back spasms in the lumbar spine, with the Nationals selecting the contract of Derek Hill from Triple-A Rochester to take his spot on the active roster

It was a rough couple of days in the field since Robles was reinstated from the IL on Friday after he seemingly recovered the same back spasms that had him inactive since May 8. On Monday, he got a late break on a ball over his head that turned into an RBI triple after he crashed into the wall trying to get back to make the catch. Then last night, he let a ball land in front of him while slowly moving to his left, leading to the animated discussion with Gore. Later in the game, he only made it to first base on a line drive off the left field wall and then struggled to go first-to-third on CJ Abrams’ double to right-center.

Davey Martinez mentioned after the game that he was going to have a discussion with Robles to see how he felt.

“We made a move today. We put Victor on the IL,” Martinez said before this afternoon’s finale against the Cardinals. “As I said last night, I was gonna have a conversation with him. I talked to him last night. I had to really stress that he needed to be honest with me. And he said he was a bit sore and that it bothered him running. It doesn't bother him hitting, it bothers him running.

It doesn’t get any easier to say, but it remains true: The Nationals need a win. Ideally, they would win their next two games to end this homestand on a somewhat positive note. They’re 0-5 since returning to D.C. last week and have only won two of their last 15 games.

Trevor Williams gets the start this afternoon in the finale against the Cardinals. The right-hander is 3-4 with a 4.50 ERA and 1.414 WHIP in his first 14 starts. He was roughed up for five runs over 4 ⅓ innings Friday against the Marlins.

Miles Mikolas gets the ball for St. Louis. The 34-year-old right-hander is 4-4 with a 4.36 ERA and 1.362 WHIP over his first 14 starts this season. He too has been beat up by opposing lineups recently, giving up 11 runs over 12 innings for an 8.25 ERA over his last two starts against the Reds and Mets.

The Nationals made a roster move this afternoon, placing Victor Robles back on the 10-day with back spasms in the lumbar spine and selected the contract of Derek Hill from Triple-A Rochester. Hill is immediately in the lineup, batting eighth and playing center field.

Unfortunately, there is rain in the forecast all day in the District. The Cardinals depart D.C. tonight for their two-game series against the Cubs in London this weekend, while the Nats have to bounce back for a makeup game against the Diamondbacks here tomorrow afternoon (which also has rain in the forecast) before they head to the West Coast for the fourth time.

The frustration of a team-wide slump that is now approaching three weeks reached what was perhaps an inevitable low point tonight, when MacKenzie Gore confronted Victor Robles in the Nationals dugout after the latter didn’t make a play on what looked like a routine fly ball to center.

The brief confrontation, which lasted only a few seconds and was relatively tame compared to more dramatic incidents widely remembered from that same dugout over the last decade and a half, was not the reason the Nationals lost the fifth straight game of this homestand, this one by the lopsided count of 9-3 to the Cardinals.

A lack of any sustained offense by the power-starved Nats lineup certainly played a key role. As did Gore’s struggles on the mound on a night the young left-hander gave up a pair of homers and five total runs across six innings. A blowup ninth inning that saw Hunter Harvey serve up a two-run homer and CJ Abrams airmail a throw to first only made things worse.

Suffice it to say, Davey Martinez would seem to have plenty on his plate right now, a number of issues that need to be fixed lest things spiral out of control for a rebuilding Nationals club that legitimately looked like it had turned a corner only 2 1/2 weeks ago but is now reeling from 13 losses in its last 15 games.

The manager's message after this loss, though, wasn't all that different from previous ones. He may have been frustrated by the loss and the factors that contributed to it, but he didn't see reason to publicly scold his team at the end of the night.

When looking for reasons to explain the Nationals’ more competitive play early this season, it was easy to point to the club’s improved defense as a significant factor.

After rating as the majors’ worst defensive team in 2022, the Nats ended April ranked 22nd with minus-4 Defensive Runs Saved. That’s far from excellent play in the field, but it did represent real improvement from the previous year.

When they take the field this afternoon, though, the Nationals find themselves back at the bottom of the list. They entered the day with minus-29 DRS, tied with the Athletics for worst in the sport.

Defensive metrics, of course, remain far from a perfect measurement of actual defensive play. But the eye test also seems to suggest the team’s performance has regressed in this area over the last month or so.

“I still feel like we’re playing pretty good defense,” manager Davey Martinez insisted today. “Look, you’ve got to remember we’ve got two guys that are really young in the middle of the field, and it’s going to be part of the process. But I think overall they’re doing well.”

After missing 33 games, Victor Robles finally returned to the Nationals lineup last night.

Before the series opener against the Marlins, a 6-5 loss, the Nationals returned Robles from his rehab assignment and reinstated him from the 10-day injured list while optioning Alex Call down to Triple-A Rochester. Robles had been on the IL since May 8 with what the team originally called back spasms.

But it turned out to be a slightly more serious back injury that kept him sidelined for over a month.

“When I first hit the injured list, the biggest thing I was very frustrated,” Robles said via interpreter Octavio Martinez. “Frustrated with the fact that I wasn't able to swing. I felt like my back was real tight and it made me immobile a little bit. But with the hard work of our trainers here, they've done a great job of trying to get me back on the field. And I still feel it a little bit running, but overall I feel good swinging the bat.”

He had no problem swinging the bat before the injury, hitting .292 with four doubles, a triple, eight RBIs, 10 walks, 13 runs and eight stolen bases in 31 games to start the season. And he picked up right where he left off when he was finally able to start a rehab assignment with Rochester, reaching base in all four games and going 4-for-7 (.571) with a double, two home runs, five RBIs, a walk and five runs scored in his final two outings with the Red Wings.

Victor Robles walked into the Nationals clubhouse with a little more hop in his step than he had over the past month-plus. He wasn’t very mobile or flexible while dealing with a back injury that had him on the 10-day injured list since May 8.

Robles was back to his energetic self today because he was returned from his rehab assignment and reinstated to the active roster this afternoon, while Alex Call was optioned to Triple-A Rochester in a corresponding move.

“We made a move today before the game,” manager Davey Martinez said to open his pregame media session ahead of tonight’s opener against the Marlins. “Victor is back with us. He checked all the boxes down there. He feels really good. So we optioned Call down. Look, I can't say enough about Alex. He played unbelievable defense for us. He was out there every day. He's an unbelievable competitor, a good teammate. We want to send him down and kind of get his swing straightened out a little bit. I don't think it'll be the last you've seen of Alex. But he was struggling a little bit with the bat. So we get Victor back. He was swinging the bat really well before he got hurt. So hopefully he'll jump-start us again.”

Robles was off to a good start to the season, hitting .292 with four doubles, a triple, eight RBIs, 10 walks, 13 runs and eight stolen bases in 31 games before he was placed on the IL. And he continued that success in his rehab in Rochester, reaching base in all four games and going 4-for-7 (.571) with a double, two home runs, five RBIs, a walk and five runs scored in his final two outings with the Red Wings.

The 26-year-old is back in center field and batting eighth tonight as the Nats face reigning National League Cy Young Award winner Sandy Alcantara. But even as he’s thrust back into the starting lineup, the Nats will continue to monitor how his back is feeling.

After a 2-4 road trip, the Nationals have lost five straight series, all coming against tough opponents. And depending on how you view the Marlins, another one is on deck this weekend.

The Fish are 38-31 and in second place in the National League East, but have the second-worst run differential in the division at -30. Their bread and butter is one-run games in which they are a stunning 17-5, including two out of the three games they won against the Nats in May.

Of course, the Nats have struggled against the Marlins for a while. They are 4-18 against their division rivals since the start of last year.

Trevor Williams gets the start in tonight’s opener. The right-hander is 3-4 with a 4.11 ERA and 1.355 WHIP in his first 13 starts. He has set season highs with six strikeouts in back-to-back outings and turned in a quality start against the Marlins the last time these two teams met.

Sandy Alcantara gets the call for the Fish. The reigning NL Cy Young Award winner has not put up the kind of numbers we’re used to seeing from the right-hander, going only 2-5 with a 4.75 ERA on the year. But he did hold the White Sox to one run over seven innings in his last start.

HOUSTON – It seems hard to believe given his offensive struggles the last three seasons, but Victor Robles’ pending return should be a real boon to the Nationals’ offensive fortunes.

Robles, out since May 7 with a back injury, appears to be in the final stages of a rehab assignment with Triple-A Rochester and could be activated this weekend, perhaps even in time for tonight’s series opener against the Marlins at Nationals Park.

Will the 26-year-old center fielder with a career .670 OPS really make much positive difference at the plate? If he performs anything like he did prior to suffering the injury while sliding into second base in Arizona, yes.

Robles was making some real strides through the season’s first month-plus. It’s not just his .292 batting average and .388 on-base percentage, impressive as those are. It’s his approach at the plate, a vast improvement from 2020-22.

Robles has always been one of the freest swingers in baseball, often to his detriment. His strikeout rate the last three seasons was a lofty 25.1 percent, his walk rate a scant 6.1 percent that plummeted to 4.2 percent in 2022.

HOUSTON – There was what appeared to be a bounceback performance 2 1/2 weeks ago in Kansas City, prompting the question: Was Mason Thompson back?

The answer, at that time: No, he wasn’t. The Nationals reliever followed up an encouraging, two-scoreless-inning appearance May 27 against the Royals with a three-run meltdown three days later at Dodger Stadium.

So take this with a grain of salt. But after another dominant performance Tuesday night during the Nats’ 6-1 loss to the Astros, Thompson continued a more recent trend that suggests he may actually be coming out of his long funk at last.

“Absolutely, he’s getting back,” manager Davey Martinez insisted.

What did Thompson do in this game to stand out? He faced three batters in the bottom of the sixth and proceeded to retire the side, inducing a grounder to short and then back-to-back strikeouts of Chas McCormick and Jake Meyers.

HOUSTON – Davey Martinez walked into Minute Maid Park this afternoon and couldn’t help but think about the last time he was here.

“Pretty cool,” the Nationals manager said. “It was four years ago, but it brings out good memories. I was sitting around with some of the guys who were here in ’19. There’s not many of us left. But we were reminiscing a little bit. It was fun.”

Indeed, there aren’t too many members of the Nats’ current roster or staff that were part of the 2019 World Series. Martinez is one of the last remaining, uniformed links to the franchise’s lone World Series title, so he found himself today sharing stories of that glorious late October week with young players who weren’t even in the major leagues at that point, let alone a part of this organization.

The next three nights, with the Nationals facing the Astros here for the first time in four seasons, offer everyone a chance both to reminisce about better days and to think about what it will take for this franchise to return to that kind of prominence.

There’s only one player on the active, 26-man roster who appeared in the 2019 World Series. And by sheer coincidence he takes the mound for tonight’s series opener.

ATLANTA – The Nationals are going to use these couple of off-days over this week to give one of their young starters some extra rest.

Jake Irvin will have his next start skipped in the rotation, with the Nats listing Patrick Corbin, Josiah Gray and MacKenzie Gore as the probable starters for the upcoming three-game series against the Astros.

Thursday’s postponement due to poor air quality in D.C. and tomorrow’s scheduled off-day as the team travels to Houston mean the Nats have two off-days over a five-day span.

“We have an opportunity to do some different things, and to give him a break was nice,” manager Davey Martinez said of the decision to skip Irvin before today’s series finale against the Braves. “We're gonna eventually have to do that with all of our young guys here soon. We had these days off coming up, so we thought we'd give Jake a breather. But you know, he can be available out of the bullpen as well. We just want to not have him start and then he'll get back in the rotation next time around.”

Irvin, the Nats’ No. 19 prospect per MLB Pipeline, impressed over his first two major league starts. He allowed just one run in 4 ⅓ innings in his debut against the Cubs and then shut out the Giants over 6 ⅓ innings in his second outing.

ATLANTA – Before their finale against the Diamondbacks was postponed due to poor air quality yesterday, the Nationals announced they were sending Victor Robles to Triple-A Rochester on a rehab assignment.

Robles has been sidelined since he hurt his back by sliding into second base in Arizona on May 6. Up until recently, he had been very limited in what rehab work he could actually do. But has he started to improve, he was able to do more and more physical activity and is now ready to play in games.

“Victor will play tonight in Rochester and we'll see how he gets through it,” manager Davey Martinez said during his media session before tonight’s series opener against the Braves. “He'll probably get maybe four, maybe five innings. So we'll see how he gets through it.”

Robles is hitting third and playing center field for the Red Wings tonight in Worcester.

Needing a bounceback season, the 26-year-old was off to a solid start to the season before his injury. In 31 games, he was hitting .292 with a .388 on-base percentage and .748 OPS. He scored 13 runs, hit four doubles, one triple and eight RBIs and stole a team-high eight bases while walking at the highest rate of his career (9.4 percent).

Victor Robles is ready to start playing in games again. Another week or so and he should be ready to play for the Nationals again.

Robles will join Triple-A Rochester on a rehab assignment Friday, the final step in the outfielder’s recovery from a back injury that has sidelined him more than a month.

“Hopefully everything goes well and we get him back here soon,” manager Davey Martinez said.

Robles departed Thursday and is expected to play four innings for Rochester, which is on the road at Worcester, on Friday. Given the amount of time he has missed, he will likely build up his workload over several days and could spend a full week on the rehab assignment before the Nats decide to activate him off the 10-day IL.

“He’s got to go out there and play, start getting some at-bats,” Martinez said. “I want to see him do everything that he normally does. If he gets an opportunity to steal some bases, take the extra bases, play good defense, all that stuff.”

The Nationals made the first of what could be several moves in coming days to address a bullpen that has become the roster’s weakest link, designating Andrés Machado for assignment and recalling Jordan Weems from Triple-A Rochester.

Machado, who was tagged for four runs and gave up a pair of killer homers during Sunday’s loss to the Phillies, was out of options and couldn’t be demoted to the minor leagues without first clearing waivers. The Nationals will wait to see if the 30-year-old clears, but because he already went through this process last winter he’ll have the right to refuse an outright assignment to Triple-A and could elect to become a free agent instead.

A somewhat consistently effective bullpen arm for the Nationals in 2021-22, Machado had a 3.41 ERA and 1.326 WHIP across 91 appearances. But after opening this season in Rochester and making his return to the majors in late April, he struggled. In 14 games, he finished with an 8.47 ERA and 1.765 WHIP.

“It’s a tough move,” manager Davey Martinez said. “I really like Machado, and he’s got good stuff. It’s just his location was not good, and he was getting hit really hard.”

A Nats bullpen that performed well in 2022 and entered this season as a perceived strength has instead turned into a major cause for concern. The group enters tonight’s game against the Diamondbacks with a National League-worst 4.73 ERA and 1.433 WHIP.

Sean Doolittle’s rehab tour through the Nationals’ farm system continues tonight for Single-A Fredericksburg, where the veteran reliever will be returning to the mound only 24 hours after his last appearance.

Doolittle, in the final stages of recovery from last summer’s elbow surgery, just tossed a 1-2-3 inning of relief Thursday night. He struck out one batter, threw eight of his 13 pitches for strikes and reached 92 mph with his fastball, according to manager Davey Martinez.

That was Doolittle’s third rehab appearance overall, the first coming for Single-A Wilmington on Saturday before he moved to Fredericksburg on Tuesday. Each included a scoreless inning and at least one strikeout.

Tonight presents a new challenge as Doolittle pitches back-to-back days for the first time in competitive games since he had an internal brace procedure on his sprained elbow ligament nearly 11 months ago. The fact he’s ready for that kind of workload can only be considered a good sign about his health, though Martinez cautioned against speculating too much about what it means until the lefty actually pitches and reports no issues afterward.

“It’s a good thing, but we’ll see how he gets through it today,” Martinez said. “We’ll see how he feels tomorrow. It may be where he gets two days off after his back-to-back, and then we’ll go from there. Or maybe just one day, depending on how he feels.”

LOS ANGELES – Victor Robles bounded into the visitors’ clubhouse at Dodger Stadium this afternoon, grabbed his glove and headed out toward the field, a hop in his step not seen much over the last three-plus weeks as he’s resided on the injured list.

“Doing much better,” the Nationals center fielder said as he headed out for a pregame workout.

Out since May 7 with back spasms, Robles hadn’t been doing much activity on a baseball field through his first two weeks on the IL. That’s finally starting to change, and today offered an opportunity to increase his workload.

“He’s actually doing a little bit of running, some agility stuff,” manager Davey Martinez said. “He’s been hitting off the tee, doing some flips. So he’s definitely progressing a little bit. He feels a lot better, which is a great sign.”

If things go well today, Martinez said Robles may start hitting soft-toss on the field before Tuesday’s game. That doesn’t necessarily mean he’s that close to returning to the active roster, though. This type of injury requires patience and the understanding it impacts all aspects of his game.

KANSAS CITY, Mo. – Ten months removed from elbow surgery, Sean Doolittle will begin pitching in competitive games again. For now, that will still be at the minor league level.

Doolittle is scheduled to join the bullpen at High-A Wilmington and make his season debut Saturday, Nationals manager Davey Martinez said. It will be the left-hander’s first actual game appearance since April 19, 2022, when he suffered a partial tear of his ulnar collateral ligament in a win over the Diamondbacks.

Doolittle spent the next several months attempting to return without surgery, hoping to make it back for the season’s second half. But when the elbow pain returned during bullpen sessions, he opted to go under the knife.

Rather than have the more invasive Tommy John surgery, which would’ve knocked him out for 12 to 18 months, Doolittle decided to go with an internal brace procedure, a relatively new option for pitchers in which the damaged ligament is wrapped and strengthened instead of replaced altogether.

Doolittle had that surgery done in July, and at the time hoped it would allow him to be ready for the start of the 2023 season. But his timeline was slowed during spring training, and the Nationals shut him down and had him start the rehab process all over again in late March.

Sean Doolittle is making a significant step in his recovery from an elbow procedure done last year.

Rehabbing at the Nationals' facility in West Palm Beach, Doolittle will start throwing on back-to-back days, the next benchmark he’s been working toward for a while.

“Sean Doolittle is gonna go back-to-back days now,” manager Davey Martinez said during his pregame media session. “Once he does that, then we'll reassess and go from there.”

The veteran left-hander was limited to just 5 ⅓ innings in six games with the Nationals last year before being shut down with an elbow injury. After trying to just rest it, Doolittle decided to undergo a similar but less invasive procedure as Tommy John surgery with the hope that he would recover faster and be able to pitch this season.

He reported to spring training healthy on a minor league deal, but was ultimately shut down out of precaution of ramping up too fast. If Doolittle feels good after throwing back-to-back games, the Nationals could start looking to get him into game action.

Jake Alu has waited for this moment his whole life, just like any ballplayer. After four seasons of college ball and the last four seasons of professional ball in the minor leagues, he has finally made the major leagues.

The moment came on Sunday, when the Nationals learned Victor Robles needed to go on the 10-day injured list with back spasms and they needed to call up someone from Triple-A Rochester.

Alu was first in line, hopping on an early cross-country flight Monday morning and meeting the team in San Francisco ahead of their three-game series against the Giants. His lifelong dream finally came true when he entered the visitors clubhouse and stepped on the field at Oracle Park.

“It's been an incredible time. It's been a whirlwind these last three days,” Alu said Friday after the Nationals returned home to start a series against the Mets. “Getting the call and getting called into (Rochester manager Matt LeCroy’s) office and getting told you're going to the big leagues, it's a lifelong goal. It's a dream. Glad that it happened.”

He got to soak in the moment on Monday, watching the Nationals’ victory from the dugout. But he got his first official taste of the big leagues on Tuesday, when he was in the starting lineup as the left fielder batting ninth.

The Nationals have returned home from a six-game West Coast road trip and received good news on the injury front after yesterday’s off-day.

Jeimer Candelario, dealing with a right ankle issue, is back in the starting lineup for tonight’s series opener against the Mets, batting sixth and playing third base. He had left Wednesday’s win against the Giants after sliding awkwardly into second base and having his right foot get caught in the dirt, twisting his ankle. After the game, he was seen with the ankle wrapped up, and manager Davey Martinez said the Nats would have to wait until today to see how he felt.

Today’s report, obviously, came back positive.

“He just slid and fell funny on it,” Martinez said during his pregame media session at Nationals Park. “It was kind of sore, but he said he feels good today. ... Everything's good.”

The Nats do have plenty of backup options just in case Candelario needed an extra day of rest. Ildemaro Vargas, Michael Chavis and Jake Alu all have experience playing third base.