Walker was removed from Wednesday's game against the A's after being hit by a pitch on his right hand, Chandler Rome of The Athletic reports.

The first baseman initially stayed in the game after being struck by a 96-mph fastball during the fourth inning, but he was replaced by a pinch hitter two frames later. The specifics of the injury remain unclear, and Walker will likely undergo medical imaging to determine the severity of the issue.

The Pirates reinstated Rodriguez (finger) from the 10-day injured list Wednesday.

The 25-year-old played in eight games during his rehab assignment with Triple-A Indianapolis, and he'll rejoin the active roster after Joey Bart suffered a concussion Tuesday in Arizona. Rodriguez made five starts behind the plate and 10 at first base prior to the finger injury, but he's likely to see more of his playing time at catcher while Bart is out.

The Rangers optioned Crim to Triple-A Round Rock on Wednesday.

Crim was called up from Round Rock on Monday but didn't see any game action. He'll yield his spot on the 26-man roster to Corey Seager (hamstring), who's being activated from the 10-day injured list. Crim has logged a .905 OPS in 180 plate appearances at Triple-A.

The Nationals reinstated Chaparro (oblique) from the 10-day injured list and optioned him to Triple-A Rochester on Wednesday.

Chaparro has been on the shelf for the first two months of the season due to an oblique strain, and he won't immediately join the active MLB roster now that he's healthy. The 26-year-old went 5-for-17 with a double and two RBI in five games with Rochester during his rehab assignment, and he'll remain with the affiliate until the Nationals need some lineup help.

Hoskins is out of the lineup for Wednesday's game versus the Red Sox.

Hoskins has hit a bit of a cold stretch of late with just one hit and eight strikeouts in his past 13 at-bats, so he'll head to the bench Wednesday after a run of 32 consecutive starts. Jake Bauers will step in at first base and bat eighth against Boston righty Brayan Bello.

Torkelson is out of the lineup for Wednesday's game against the Giants.

Torkelson will get a rest day for the series finale against San Francisco, taking a seat for the first time in 12 games. In his place, Colt Keith will play first base while Gleyber Torres slides to second base and Riley Greene serves as the DH.

Santana started at first base and went 2-for-3 with a walk and two runs scored in Tuesday's 9-5 loss to the Dodgers.

Santana was back in the lineup after missing two games due to a leg injury. He picked up where he left off prior to the injury, extending his hitting streak to seven games, during which the 39-year-old is 10-for-24 with two doubles, two home runs, six walks, six RBI and eight runs scored.

Naylor went 2-for-4 with an RBI and a stolen base in Tuesday's 9-6 loss to the Pirates.

Naylor immediately extended a hit streak to six games with a single in the first inning and later stole his ninth base of the season. That's one steal shy of the career-high 10 he posted in 2023 while with Cleveland. His RBI single in the fourth inning upped the Diamondbacks' lead to 6-0 before the bullpen collapsed late. Naylor has five RBI over the last four contests, leaving him with 34 runs batted in through 54 games.

Arraez went 3-for-5 with a double and two RBI in Tuesday's 8-6 win over the Marlins.

Arraez supplied the game-tying and go-ahead hits, knocking in a run with a single in each of the fourth and fifth innings. This ended his 0-for-14 drought at the plate, which was enough to earn him a partial rest day Monday before he appeared off the bench. Prior to that slump, he had hit safely in 11 of 12 games, batting .358 (19-for-53) in that span. Overall, the contact-hitting infielder is at a .289/.322/.416 slash line with three home runs, nine doubles, three triples, 18 RBI, 20 runs scored and two stolen bases across 47 contests.

Manager Mark Kotsay said Tuesday that Alexander is a candidate to fill in at first base while Nick Kurtz (hip) is on the injured list, Steve Schaeffer of MLB.com reports.

Before being recalled from Triple-A Las Vegas on Friday, Alexander had been slashing .252/.350/.516 with 10 homers and 32 RBI across 180 plate appearances in the minors. Since joining the big club, the 28-year-old has gone 2-for-6 in three games and drew the start at first base during Tuesday's 11-1 loss against Houston. Kotsay also mentioned Logan Davidson as an option to fill in for Kurtz at first base, so Alexander may not have sole possession of the starting job, but that could change if his minor-league numbers translate nicely in the bigs.