X-rays on Walker's right hand came back negative after he was hit by a pitch during Wednesday's game against the Athletics, Brian McTaggart of MLB.com reports.

Walker remained in the game immediately after getting plunked in the fourth inning but was eventually replaced in the sixth. He appears to have escaped the incident without suffering any significant damage, so while the Astros may give him a day or two off to recover, he shouldn't need to miss extended time.

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 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.

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.

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.

Santana (leg) is starting at first base and batting fifth Tuesday versus the Dodgers.

The veteran first baseman sat out the past two games due to left leg tightness but will rejoin the starting nine Tuesday against Los Angeles righty Dustin May. Santana is in the midst of a modest six-game hit streak, and he's gone 8-for-21 with five walks, two doubles, two homers, six RBI and six runs during that span.

The Athletics placed Kurtz on the 10-day injured list Tuesday, retroactive to May 25, due to a strained left hip flexor.

The 22-year-old suffered the injury during Saturday's game against the Angels and will spend at least the next week on the shelf. Logan Davidson was called up by the A's late last week and could see more action at first base while Kurtz is sidelined.

Aranda went 2-for-4 with a three-run home run and an additional run scored in Monday's 7-2 victory against the Twins.

Aranda ended what had been a scoreless tie with his three-run shot off reliever Brock Stewart in the sixth inning. The long ball gave the first baseman seven on the campaign, establishing a new career-high mark. Not coincidentally, Aranda has also already played in an MLB career-high 48 games, as he's managed to stay healthy while establishing a stranglehold on first-base duties for Tampa Bay. He's been able to earn a spot in the heart of the Rays' lineup with a .302/.381/.491 slash line on the campaign.

Pasquantino went 3-for-4 with two runs scored in Monday's 2-1 loss to the Reds.

Pasquantino continues to pile up hits, now riding a 10-game hitting streak and collecting 17 knocks during this span. It's been an extended hot streak at the plate for the 27-year-old first baseman, as he's now batting .346 (36-for-104) with five homers, three doubles, 14 RBI and 13 runs scored over his last 25 outings. The lefty-hitting Pasquantino now owns four three-hit efforts this season, and he should continue to see plenty of RBI chances as long as he's primarily batting third for the Royals.