Keith (back) is not in the lineup for Friday's game against Atlanta.

Keith had to be lifted from Thursday's contest versus the Guardians with a back injury and was sent for an MRI, so it's no surprise he's not ready to play in Friday's series opener. There's no word yet on the results of the imaging, but the Tigers should have an update on the 24-year-old soon. Zach McKinstry will play third base and bat eighth in Keith's stead.

Rooker went 1-for-4 with a two-run home run in Thursday's 5-3 win over Boston.

That makes it three long balls in Rooker's past five games, and Thursday's blast gave him his third consecutive 30-homer campaign. The slugging outfielder has been an excellent four-category fantasy contributor in 2025, hitting .267 with 87 RBI and 91 runs scored to go with a career-high 40 doubles over 599 at-bats. Rooker has benefitted significantly from seeing around half of his action at hitter-friendly Sutter Health Park -- he has an .891 OPS at home versus a .779 OPS on the road.

Keith will undergo medical imaging after exiting Thursday's game against the Guardians with a back injury, Evan Woodbery of MLive.com reports.

Keith was lifted after grabbing at the side of his back at the end of the second inning. Tigers manager A.J. Hinch described the injury as "very concerning," suggesting it's possible Keith strained something and could miss an extended amount of time. More will be known about Keith's status after the MRI results are in, which should be Friday.

Keith was removed from Thursday's game against the Guardians due to an apparent back injury, Evan Petzold of the Detroit Free Press reports.

Keith was spotted grabbing at his lower back at the end of the second inning before heading into the clubhouse alongside one of the Tigers' trainers. The severity of his injury isn't immediately clear, but the team should provide an update in the near future.

Santander (shoulder) is likely to remain on his rehab assignment with Triple-A Buffalo through the weekend, Arden Zwelling of Sportsnet.ca reports.

Santander has played six rehab games with Buffalo so far and saw his first action in the outfield Wednesday, though he didn't have a single ball hit to him over seven innings in left field. The 30-year-old will be Buffalo's designated hitter Thursday. Santander -- who is 4-for-22 with one homer so far on his rehab assignment -- has been sidelined since late May with a subluxation of his left shoulder. He'll aim to rejoin the Blue Jays' active roster for the final week of the regular season.

Diaz went 2-for-2 with an RBI and two walks Wednesday against the Blue Jays.

Diaz continued his excellent September by tallying his third consecutive multi-hit game. Across 15 games in the month, Diaz has hit .429 with a .515 on-base percentage while tallying two homers, seven RBI and 11 runs scored. He's also had an excellent season overall, posting career-high marks in home runs (24) and RBI (81).

Yoshida went 2-for-4 with two RBI in Wednesday's 5-4 extra-inning win over the Athletics.

Yoshida, who entered the game with a .618 OPS through 44 games, batted cleanup and delivered a run-scoring single in the first inning. He later hustled out an infield single with the bases loaded to plate a run in the fifth. His season numbers are underwhelming, but Yoshida is making a modest impact in September. He's gone 10-for-32 (.313) with two doubles and six RBI over 10 games this month.

Valera served as the designated hitter and went 1-for-4 with a walk and an RBI in Wednesday's 4-0 win over Detroit.

Valera, who remained stapled to the bench for the previous four games, rejoined the starting nine Wednesday and contributed to Cleveland's sixth straight win. He singled in the club's first run and then walked in the ninth inning before being lifted for a pinch runner, who eventually scored an insurance run. Valera has started six of the Guardians' 16 games since having his contract selected at the beginning of the month.

Stanton is out of the lineup for Wednesday's game against the Twins.

Stanton will rest up Wednesday after he went 3-for-12 with two RBI and a run while starting each of the last three days. With Stanton on the bench, Aaron Judge will get a day off from playing the outfield but will stick in the lineup at designated hitter.

Jensen went 3-for-4 with two home runs, a double, three RBI and an additional run scored in Tuesday's 12-5 loss to the Mariners.

Jensen delivered the best outing of his young big-league career Tuesday, notching his first multi-hit game and blasting his first two MLB home runs. His first was an opposite-field solo shot down the left-field line in the fourth inning, then he followed with a two-run drive to right in the sixth inning. The well-regarded prospect had felt the learning curve through his first eight games with a .176/.333/.235 slash line, but his huge effort raised his OPS by 498 points. Jensen made his third consecutive start Tuesday and looks to be gaining traction in Kansas City's everyday lineup.