Palacios was removed from Wednesday's game against the Marlins with an apparent lower-body injury, Marc Topkin of the Tampa Bay Times reports. He walked in his lone plate appearance, stole his 19th base of the season and came around to score a run before exiting the game.

Palacios appeared to hurt his knee while sliding into second base on the steal. Though he was able to stay in the game and scored on Jonny DeLuca's RBI triple, Polanco ultimately remained in the dugout when the Rays took the field for the top of the third. Dylan Carlson came off the bench to play left field in place of Palacios, who can be considered day-to-day until the Rays provide an update on his status.

Castro is out of the lineup for Wednesday's game against the Mets.

Castro will exit the starting nine for the first time since July 10, breaking a streak of 13 consecutive starts. The versatile 27-year-old has picked up 10-plus starts at five different positions this season, but he's been seeing most of his action at second base of late following Edouard Julien's demotion to Triple-A St. Paul last week.

Gelof went 2-for-3 with a walk in a win over the Giants on Tuesday. He was also caught stealing twice.

Gelof's small-ball production stood in stark contrast to that of his teammates, as the Athletics scored all five runs off home runs. The multi-hit effort was an especially welcome sight for Gelof, who entered the night mired in a 1-for-25 slump that had encompassed his previous seven games. Gelof had last tallied multiple hits in a game July 9, and despite Tuesday's success, his average remains just below the Mendoza Line at .196 due to his recent skid. The pair of failed steal attempts were an outlier as well, considering Gelof had gone an impressive 12-for-13 in that category this season coming into Tuesday.

Baldwin is out of the lineup for Wednesday's game against the Royals.

Baldwin will get his first day off since he was promoted from Triple-A Charlotte earlier this month. The rookie infielder has had a tough time getting going in his first taste of the majors, going 7-for-40 with a 15:2 K:BB in 12 games. Lenyn Sosa will start at second base for the White Sox on Wednesday.

Massey is absent from the lineup for Wednesday's game versus the White Sox.

The White Sox have a right-hander in Drew Thorpe on the rubber, but the left-handed-hitting Massey will nonetheless begin the contest on the bench. With Massey out of the lineup, Freddy Fermin will serve as the Royals' designated hitter, while Maikel Garcia starts at second base.

Polanco went 2-for-4 with a solo home run, an RBI double and two additional runs scored during Tuesday's 10-6 win over the Red Sox.

Polanco lifted his 10th homer of the season Tuesday, tagging James Paxton for a solo shot in the fourth inning. The second baseman has been hot at the plate, clubbing four homers in his last five games and going a combined 7-for-19 with eight RBI and eight runs scored during that stretch. On the year, Polanco has recorded career worsts in OPS (.649) and strikeout rate (30.5 percent).

Lopez went 2-for-3 with a triple, two runs scored and a walk Tuesday against the Royals.

Lopez led off for the third straight contest and has tallied at least one hit on each occasion while scoring three runs. He has just a .049 ISO across 320 plate appearances for the season, though he has only a 14.7 percent strikeout rate and a 7.7 percent walk rate. If Lopez sticks as the leadoff hitter, he could be a decent source of runs for the final two months of the campaign.

Morel went 1-for-4 with a solo home run and an additional run scored during Tuesday's 9-3 win over the Marlins.

Morel went yard in his second at-bat as a Ray, tagging Edward Cabrera for a solo homer in the fourth inning. Morel drew the start at second base Tuesday, his first time playing the position this season after working as a third baseman and DH for the Cubs. Tuesday's homer was Morel's 19th of the season, and he's slashing .199/.303/.380 with 52 RBI and 45 runs across 426 plate appearances.

The Orioles transferred Mateo (elbow) from the 10-day injured list to the 60-day IL on Tuesday, Rich Dubroff of BaltimoreBaseball.com reports.

Mateo was placed on the 10-day injured list Thursday with a left elbow subluxation and he will now be forced to miss two months of action while recovering. He'll be eligible to return from the IL in late September if he's able to avoid any setbacks. With Mateo unavailable, top prospect Jackson Holliday is set to be called up from Triple-A Norfolk to join the major-league roster in Baltimore on Wednesday ahead of the team's series finale with the Blue Jays. Holliday will likely take over as the Orioles' primary second baseman.

The Royals optioned Loftin to Triple-A Omaha on Tuesday.

The 25-year-old will lose his place on the big-league roster after the Royals acquired Paul DeJong from the White Sox on Tuesday. Loftin has a .199/.294/.248 slash line with one homer in 55 MLB games this season.