WEST PALM BEACH, Fla. – A bunch of guys are going to play for the Nationals today in their Grapefruit League opener against the Astros. But not everyone.

Some prominent regulars are being held back and are expected to debut Sunday against the Mets, including CJ Abrams, Luis García Jr. and Nathaniel Lowe. That’s the routine in late February, when hardly anyone plays in back-to-back games.

Then there are those players who aren’t ready to take the field for game action quite yet. And there are some significant names on that list.

Most notable is James Wood, who has been dealing with right quad tendinitis. The 22-year-old outfielder continues to take batting practice, and on Friday he was cleared to begin light running. But there doesn’t appear to be a rush to get him into games just yet.

“He’s been hitting. He’s starting to a run a little bit,” manager Davey Martinez said. “But we’re kind of going to slow play this a little bit and try to nip this in the bud.”

WEST PALM BEACH, Fla. – Two weeks into the new year, the Nationals had only one relief pitcher on their roster with any kind of substantial big league experience: Derek Law. Clearly, Mike Rizzo still had plenty of work to do before the start of spring training.

The process remains slow, but the Nats have managed to add three experienced relievers over the last month. They signed right-hander Jorge López to a $3 million deal on Jan. 11. They signed left-hander Colin Poche to a minor league deal on Feb. 7. And then on Wednesday they signed right-hander Lucas Sims to a $3 million deal.

At long last, a bullpen that was woefully short on proven arms now has four veterans to take some pressure off the organization’s young relievers.

“These guys have done it. They understand it. They’ve done it at the major league level,” manager Davey Martinez said. “They can teach our younger guys what it takes to go out there and compete, to be put in these high-leverage situations. Talk to them about controlling your heartbeat, always being ready, what their routine is like in every situation. I’m excited about the guys we brought in, the veteran guys, because they’re willing to do that.”

All three newly signed veterans have said the right things about their individual responsibilities and their desire to mentor younger teammates who haven’t been through the meat grinder before.

WEST PALM BEACH, Fla. – The Nationals have added a much-needed experienced arm to their bullpen, albeit one trying to bounce back from a rough year.

Veteran Lucas Sims formally signed a one-year deal with the Nats this morning, the 30-year-old right-hander getting a major league contract and thus a near-guaranteed spot on the Opening Day staff.

Needing to clear space on the 40-man roster, the club placed Mason Thompson (who had Tommy John surgery last spring) on the 60-day injured list.

Sims, who was in uniform and ready to participate in today’s workout, is behind his new teammates by a week but believes his late signing won’t impact his ability to be ready for the regular season.

“I was patient. I had a good situation in the offseason out in Arizona. I was content,” he said. “I was able to get my work in. I knew whenever a deal came together that I was going to be ready to go. I’m glad it worked out.”