The Athletics placed Lopez on the 15-day injured list Tuesday with a left elbow flexor strain.

Lopez's strained elbow played a factor in his performance in a loss to the Mariners on Sunday, when he surrendered nine earned runs in just two innings. The Athletics will shut down for a period of time before he's cleared to start a throwing program, though the team is optimistic that the 27-year-old southpaw will make it back before the end of the season, likely as a reliever. Mason Barnett was selected from Triple-A Las Vegas to take Lopez's place on the active roster, but the team hasn't yet announced who will replace Lopez in the rotation.

The Athletics selected Barnett's contract from Triple-A Las Vegas on Tuesday.

The 24-year-old Barnett has spent the entire season at Las Vegas, turning in a 5.83 ERA and 1.56 WHIP across 117.1 innings through 24 appearances (22 starts). Despite his unimpressive statline, he'll join the big-league roster for the first time in his career to fill in for Jacob Lopez (elbow), who landed on the IL in a corresponding move. If Barnett takes Lopez's place in the Athletics' rotation, the former would be lined up to make his MLB debut Saturday against Texas. Otherwise, he could be used as a multi-inning relief option.

Rangers president of baseball operations Chris Young announced Tuesday that Eovaldi is likely to miss the rest of the 2025 season due to a rotator cuff strain, Kennedi Landry of MLB.com reports.

It's unclear when exactly Eovaldi sustained the injury, as he allowed just one run over seven innings versus the Guardians in his most recent start Friday. Assuming the veteran right-hander is indeed done for the season, he'll have the best campaign of his career cut short. Eovaldi is now likely to close out 2025 with a 1.73 ERA, 0.85 WHIP and 129:21 K:BB across 130 innings.

Lopez (shoulder) will continue his rehab assignment Tuesday with Triple-A St. Paul, Bobby Nightengale of The Minnesota Star Tribune reports.

The veteran right-hander allowed one earned run on four hits with two strikeouts and a walk over 1.2 innings during his first rehab outing last week, and he's expected to build up to about four innings or 65 pitches Tuesday. Lopez has been sidelined by the shoulder strain since early June and will likely require an additional start or two in the minors after Tuesday before returning from the 60-day injured list.

The Red Sox placed Fitts on the 15-day injured list Tuesday with right arm neuritis, Jen McCaffrey of The Athletic reports.

Fitts had to be lifted from Monday's outing in Baltimore due to the injury. It's unclear how much time the right-hander will miss, but the Red Sox will need someone to slot into Fitts' spot this weekend against the Pirates as a starter or bulk reliever.

The Red Sox will place Fitts (biceps) on the 15-day injured list prior to Tuesday's game in Baltimore, Chris Cotillo of MassLive.com reports.

While Fitts seemed to avoid a serious injury when he exited Monday's appearance with right biceps tightness, the issue is bad enough to require him to miss at least a couple weeks of action. It's unclear who will slot into the rotation in Fitts' place, but Kyle Harrison, Payton Tolle and Walker Buehler are among the options.

The Orioles activated Bradish (elbow) from the 60-day injured list Tuesday.

Bradish is set to make his season debut Tuesday against the Red Sox after completing the long road back from Tommy John surgery with an internal brace. The right-hander posted a 4.91 ERA and 25:8 K:BB over 22 innings covering six rehab starts. Bradish threw 89 pitches during his final rehab outing, so he should be prepared to take on a fairly normal workload Tuesday.

Tigers manager A.J. Hinch said Tuesday that Cobb (hips) has been pulled off his rehab assignment and will be shut down for a week before he resumes pitching in minor-league games, Chris McCosky of The Detroit News reports.

Cobb doesn't appear to have experienced a setback in his recovery from his hip injuries. Instead, pulling him off the assignment will allow the Tigers to delay a decision on activating the pitcher from the 60-day injured list, as his 30-day rehab window was about to end. Cobb has made six rehab appearances since restarting his rehab assignment July 29 and has pitched well, posting a 2.03 ERA and 17:7 K:BB over 13.1 innings between Toledo and High-A Lansing. The Tigers are considering Cobb for a multi-inning relief role once he returns from the IL.

Valera (elbow) recently resumed throwing live batting practice and is expected to return from High-A Greenville's 60-day injured list before the end of the season, Alex Speier of The Boston Globe reports.

According to Speier, Valera's fastball has been clocked at 98-to-99 miles per hour during his most recent live sessions, so he looks to be close to fully recovered from the sore elbow that has kept him out of action since late May. Prior to landing on the IL, Valera posted a 5.40 ERA, 1.42 WHIP and 37:9 K:BB in 33.1 innings over eight starts with Greenville.

Cobb (hips) could make one more rehab appearance for Triple-A Toledo before being activated from the 60-day injured list and slotting into Detroit's bullpen, MLB.com reports.

Cobb has now made a total of nine rehab appearances, with each of his last three outings coming with Toledo. He's nearing the end of his 30-day rehab window, so the Tigers will need to make a decision on what to do with the veteran. Cobb recently shifted to a relief role with Toledo after previously getting built back up as a starter, and manager A.J. Hinch said the team wants to keep him "stretched out to 30, 40, 50 pitches." The righty will likely serve as a long reliever once he's activated, giving Detroit some pitching depth for the stretch run.