In search of more experienced catching depth, the Nationals signed veteran Andrew Knizner to a minor league deal, offering the former Cardinals backup an invitation to big league camp and a chance to compete for a major league job.

The deal, which was confirmed by a source familiar with the terms, was first reported by the Washington Post.

Knizner, who turns 30 next month, has 290 games of big league experience, most of that coming from 2019-23 with the Cardinals, where he served as the primary backup to Yadier Molina and later Willson Contreras. His career offensive numbers (a .210/.279/.317 slash line) aren’t great, but he slugged 10 homers in only 241 plate appearances in 2023 and has worked with a number of prominent pitchers from his time in St. Louis.

A native of Glen Allen, Va., who went on to play at North Carolina State, Knizner was let go by the Cardinals after the 2023 season and signed with the Rangers one year ago. He played 35 games for Texas, batting just .167, before getting claimed off waivers in August by the Diamondbacks. He finished the season playing for Arizona’s Triple-A affiliate in Reno, batting .263 with two homers and 12 RBIs.

Knizner will come to West Palm Beach, Fla., with a chance to compete for a spot on the Nationals’ Opening Day roster, but he’ll have to outplay at least two other catchers who seemingly have a leg up for the No. 2 job behind starter Keibert Ruiz.

The Nationals made the sixth addition to their major league roster in the last month Saturday afternoon. The team announced signing reliever Jorge López to a one-year deal, adding the former All-Star closer to the back end of the bullpen.

López, who turns 32 in February, will earn $3 million plus incentives this year, a source confirmed. The New York Post’s Jon Heyman was first with terms of the deal.

Over a nine-year career that includes stops with the Brewers, Royals, Orioles (twice), Twins, Marlins, Mets and Cubs, the right-hander has a 5.25 ERA, 1.462 WHIP, 31 saves and 7.9 strikeouts per nine innings in 282 appearances (58 starts). However, since moving to a full-time reliever with the Orioles in 2022, López has a 3.74 ERA, 30 saves, 21 holds and 171 strikeouts in 183 innings.

Last year, López went 2–3 with a 2.89 ERA, 50 strikeouts and four saves in 52 appearances between the Mets and Cubs. He caused some controversy in New York when he was ejected in the eighth inning of a May 29 game against the Dodgers and threw his glove into the stands while walking off the field. After the game, he was quoted as seemingly calling the Mets “the worst team” in the majors.

Though he tried to clarify that he was calling himself “the worst teammate on the worst team in baseball,” the Mets designated López for assignment the next day and released him on June 5.

You can be forgiven if you missed this news item while paying attention to football, snow prep or both on Sunday, but the Nationals officially announced the Josh Bell signing. That one-year, $6 million deal was agreed to one week earlier but wasn’t done-done until Bell passed his physical, which has now happened.

There’s an important side note to mention with this transaction. Bell’s addition now leaves the Nats’ 40-man roster entirely full for the first time in months. They had maneuvered their way to create four openings heading into the Winter Meetings in December, then proceeded to fill those spots with the signings of free agents Bell, Trevor Williams and Michael Soroka, the selection of Evan Reifert in the Rule 5 Draft and the one-for-one trade of Robert Garcia to the Rangers for Nathaniel Lowe.

What that means: If they want to acquire any more major league players this winter, the Nationals will first need to clear more 40-man spots to make that possible. Considering they are still woefully thin on experienced relievers, while also potentially still looking for a more established third baseman, it’s safe to say moves are forthcoming.

You never want to have to drop someone from the 40-man, but a scan of the Nats’ current roster reveals more than a few names who will probably be under consideration when the time comes.

Here’s a look at the full 40-man roster as it now stands, broken down by position …

MILWAUKEE – It’s been an eventful weekend here, to say the least. Friday night’s win was solid. Saturday afternoon’s win was wild. And the postgame trade of Hunter Harvey threw an unexpected wrench into the proceedings. And at the end of all that, the Nationals now take the field this afternoon with a chance to sweep the first-place Brewers and go into the All-Star break on a decidedly high note.

The Nats will hope to keep the good offensive vibes going, this time against right-hander Colin Rae. The 34-year-old journeyman is enjoying a solid season, but he’s not a big strikeout guy and he has allowed 14 homers in 99 1/3 innings. If the Nationals can hit the ball in the air on a warm, muggy day here, they should have a chance to score some runs.

Jake Irvin gets the ball for the first-half finale, and it’s been a fantastic first half for the right-hander, aside from an ugly loss to the Mets last week. Irvin will hope to turn that around, pitch more like himself and go into the break on his own personal high note.

Update: The Brewers are actually not starting Rae today. Instead, it will be left-hander Rob Zastryzny opening a bullpen game.

Update II: The Nationals have recalled right-hander Amos Willingham from Triple-A Rochester to take Harvey's roster spot.

OAKLAND, Calif. – The revolving door that is the 26th man on the Nationals roster stopped on a new name today: Amos Willingham. The club wanted to carry an extra reliever for this weekend’s series against the Athletics, so Willingham got the call to replace catcher Drew Millas, who flew to San Francisco for one game Wednesday before getting sent right back to Triple-A Rochester.

Turns out the Nats might have preferred to keep Millas around a little longer, because Keibert Ruiz remains sick with flu-like symptoms, leaving the team with only one healthy catcher tonight in Riley Adams.

Ruiz hasn’t played since Monday’s series opener against the Giants. Adams caught the following night, then Millas was called up for Wednesday’s game, which he started before being optioned back to Rochester at the end of the day.

Millas’ spot went to Willingham, recalled from Rochester this morning to give the team an eighth reliever.

“We thought we needed another guy in the bullpen,” manager Davey Martinez said. “So he’s going to be with us until otherwise noted. But I really felt like we could use another guy in the bullpen to help us out a little bit. They’ve been out there quite a bit already, so having another guy in the bullpen helps.”

MILWAUKEE – The Nationals made one change to their bullpen before today’s series finale against the Brewers and appear to be contemplating a change to their rotation in the coming days.

Needing a fresh arm after Trevor Williams’ two-inning start Saturday night taxed the bullpen, the Nats recalled Cory Abbott from Triple-A and optioned Amos Willingham back to Rochester.

“We just needed somebody with length,” manager Davey Martinez said. “It’s a stinky part of the job. I really like Willingham, wanted to see him more. But our bullpen’s been beat up, so we wanted to have two guys down there who can give us length in case something happens.”

Willingham was the first reliever summoned after Williams was knocked out early and wound up throwing 43 pitches over one-plus innings. The rookie right-hander wouldn’t have been available again for several days, so the team made the move to bring up Abbott, who tossed five hitless innings for Rochester five days ago and is available for long relief today if needed.

Though there’s still a chance Willingham could return to the big leagues before season’s end, this likely ends the 24-year-old’s rookie campaign, one that saw him start the year at Double-A Harrisburg and work his way up the organizational ladder.

Afforded the opportunity to expand their roster now that the calendar has shifted to September, the Nationals chose to add an outfielder with some prior big league experience and a reliever who has already made several stints in D.C. this season.

The Nats promoted outfielder Travis Blankenhorn and right-hander Amos Willingham from Triple-A Rochester, adding the one extra position player and one extra pitcher allotted by Major League Baseball for the season’s final month.

This is the fourth time the Nationals have called up Willingham, who has allowed 14 runs and 24 hits in 14 innings as a big leaguer. He may not stick here for long, with MacKenzie Gore set to return from bereavement leave in the coming days and Tanner Rainey nearing completion of his rehab assignment from last summer’s Tommy John surgery.

Blankenhorn, who spent the entire season in Rochester to this point, should get a more extended look as the Nats try to evaluate several players who are trying to force their way into the club’s long-term plans before top prospects Dylan Crews, James Wood, Brady House and Robert Hassell III make their major league debuts.

A 27-year-old outfielder with 26 games of prior big league experience with the Twins and Mets, Blankenhorn was a non-roster invitee to spring training and then spent the last five months at Triple-A, where he hit .262/.360/.517 with 23 homers and 75 RBIs across 455 plate appearances.

As well as they played for a good six weeks, the Nationals are kind of slipping a bit of late. They’ve lost four of their last five games, and a big part of the problem has been a lack of offense. The Nats have scored only 10 runs over those five games, totaling 30 hits, only six of those for extra bases. More, obviously, is needed.

The return of Lane Thomas to the lineup after missing Thursday’s game with a tight back would help, though he’s been slumping himself. Perhaps newly promoted outfielder Travis Blankenhorn, called up from Triple-A Rochester this afternoon, will provide a spark and some power.

Jake Irvin gets the start for the Nationals, and he quietly has become their most consistently effective starter. Over his last 13 outings, the rookie right-hander has a 3.64 ERA. And he’s allowed two or fewer runs in seven of those starts, often completing six innings. Another such performance tonight against the Marlins would be great.

The Nats have another arm in their bullpen as well, with Amos Willingham recalled from Triple-A as the roster expands to 28 active players. Reliever Rico Garcia, who had been on the 15-day injured list, was released to clear a 40-man spot for Blankenhorn.

WASHINGTON NATIONALS vs. MIAMI MARLINS
Where: Nationals Park
Gametime: 7:05 p.m. EDT
TV: MASN, MLB.tv
Radio: 106.7 FM, MLB.com
Weather: Clear, 76 degrees, wind 6 mph out to left field

PHILADELPHIA – While this four-game series between the Nationals and Phillies actually gets underway this afternoon, let’s revisit some injury updates from manager Davey Martinez that he gave prior to yesterday's rainout.

The Nationals have seven relievers currently on the 15-day injured list, with a handful of them making significant strides toward returning soon.

Carl Edwards Jr., on the IL with right shoulder inflammation, is getting close to a rehab assignment with a minor league affiliate after throwing bullpen sessions and working toward a simulated game. If he clears those next two sessions while at the Nats’ facility in West Palm Beach, a rehab assignment would come next.

“Carl Edwards is continuing the throwing program,” Martinez said yesterday. “He'll throw a bullpen again tomorrow. If everything goes well, he's set to throw the sim game and then hopefully that goes well. And if everything goes well with that, we'll probably send him out on a rehab assignment. So progression, very good.”

Hunter Harvey, who is with the team in Philly while rehabbing his right elbow strain, was scheduled to throw another bullpen session today. If the Nats get a good report back from that, he too will head out on a rehab assignment soon.

NEW YORK – When the Nationals’ lineup for today’s series finale against the Mets was posted and Lane Thomas’ name was notably missing, eyebrows surely were raised within the clubhouse, the fan base and perhaps around the rest of the majors.

Such is life in the final days of July, when any player who could be on the trade block doesn’t play.

Thomas’ day off, though, is nothing more than that. Manager Davey Martinez said he had been wanting to give his right fielder a breather for a while, and with a quick turnaround from Saturday night’s rain-delayed win, this felt like the right time to do it.

“He’s good. I’ve just got to give him a day,” Martinez said. “I just wanted to give him a day off today, and he’ll come back tomorrow and be ready to go.”

Thomas started 103 of the Nationals’ first 105 games this season, and both of his days off came way back in April. His performance and importance to a lineup short on consistent production has dictated his usage, and Martinez has been hesitant to sit him at all.

The Nationals brought in some bullpen reinforcement ahead of this afternoon’s finale against the Rockies.

Andrés Machado had his contract selected from Triple-A Rochester, Amos Willingham was optioned down to Rochester and Victor Robles was transferred to the 60-day injured list.

After starting the season in Rochester, Machado, 30, posted an 8.47 ERA and 1.765 WHIP in 17 innings over 14 major league appearances this season. He was designated for assignment on June 5 when Jordan Weems was recalled.

The right-hander struggled with his command in his short time with Washington. He gave up 25 hits, six home runs, five walks, a balk and a wild pitch while only striking out 12.

With the Red Wings, he has a 4.08 ERA and 1.186 WHIP in 28 ⅔ innings over 24 outings.

CHICAGO – Davey Martinez knew it was probably going to come to this tonight. With Mason Thompson and Kyle Finnegan having both pitched 1 1/3 innings in order to seal Monday night’s win over the Cubs, the Nationals manager was going to have to entrust some high-leverage situations to young, untested relievers in this game.

So it was no surprise when the bullpen door underneath the right field bleachers opened up in the sixth and seventh innings of a tight ballgame and out trotted Amos Willingham and Jose A. Ferrer. Sadly, it may not have surprised many when those two rookies – and then journeyman Paolo Espino – imploded before everyone's eyes, combining to allow an astounding 14 runs and turn a tight ballgame into a farcical, 17-3 loss.

This is the current state of the Nationals bullpen. With Hunter Harvey (elbow strain) and Carl Edwards Jr. (shoulder inflammation) on the injured list, Martinez has only two semi-proven late-inning options in Thompson and Finnegan. And when he needed those two to record the final eight outs of Monday’s 7-5 win, he left himself with no choice but to see how these newcomers might handle a big moment.

It did not go well.

Willingham, a 2019 17th round pick who hadn’t pitched above Single-A before this season, got out of a sixth-inning jam but did not retire any of the four batters he faced in the seventh. Patrick Wisdom homered to open that inning, and three singles followed before Martinez pulled the 24-year-old.

ST. LOUIS – Under the circumstances, Davey Martinez had to do what he had to do earlier in the day. His Nationals had a chance to win the completion of Friday night’s suspended game, so he used all of his top relievers to make sure his team did ultimately prevail in extra innings over the Cardinals.

The danger in going for it this afternoon, of course, was leaving the bullpen without those top arms tonight. And the Nats paid the price for it.

A trio of secondary relievers gave up four runs in the span of two innings, turning a tie game into a 9-6 loss to cap a long day of baseball in downtown St. Louis that featured yet another rain delay.

After Jake Irvin lasted only three innings in a laborious start, Martinez turned to rookies Amos Willingham and Jose A. Ferrer, then veteran Paolo Espino to keep the game within reach. They couldn’t do it, with Willingham and Ferrer combining to allow three runs in the fifth and then Espino allowing one in the sixth and then another tack-on run in the eighth.

The Nationals wound up splitting the doubleheader and will need to win Sunday’s finale to emerge with their fifth series win in their last six tries. Tonight’s loss prevented them from pulling off their first four-game winning streak since June 27-30, 2021.

SEATTLE – A Nationals bullpen that has gone through a number of changes in the last week experienced another one today when the club promoted right-hander Amos Willingham from Triple-A and optioned Paolo Espino back to Rochester.

This move comes only two days after the Nats called Espino up to replace Chad Kuhl, who was designated for assignment. (The club officially requested unconditional release waivers on Kuhl today, making him a free agent.)

Willingham, 24, made a name for himself in the organization early this season, stringing together 10 consecutive scoreless appearances with 14 strikeouts and only one walk for Double-A Harrisburg. That earned him a promotion last month to Triple-A, where he wasn’t as dominant (3.46 ERA, 11 strikeouts, eight walks over 13 innings), but still pitched well enough to earn consideration for another promotion.

“I knew this could be a big year for me,” he said. “I needed to go in and take care of everything I needed to do, and I knew there would be opportunities to move up. I had no idea it would happen this fast. I was thinking at this point in the year maybe get to Triple-A, and then maybe be in Triple-A until September and maybe get a look up here. But it’s all happened so fast, it’s hard to really fathom the entire process.”

The Nationals might have called Willingham up Saturday to take Kuhl’s spot, but he had just thrown 30 pitches over two innings and likely wouldn’t have been available for another couple days. So they instead recalled Espino, who wound up pitching the ninth inning of Sunday’s 8-3 win in San Diego but retired only two of the five batters he faced, prompting manager Davey Martinez to summon closer Hunter Harvey for the final out.

The Nationals concluded the 2019 First-Year Player Draft with a total of 39 selections. The Nats selected 13 right-handed pitchers, six left-handed pitchers, two outfielders, 14 infielders and four catchers. 24 of the selections came from four-year universities, seven from junior colleges and eight from the high school ranks. Adding to the nine selections made on the first two days, the Nats started the final day of the draft by selecting Fresno State shortstop J.T. Arruda in the 11th...