Cowser was diagnosed with two fractured ribs after colliding with the outfield wall during a June 12 game against the Tigers, Andy Kostka of The Baltimore Banner reports.

Cowser missed three games with what the Orioles referred to simply as general soreness at the time, but the outfielder has now revealed that he had a more serious diagnosis. While Cowser homered three times in the first four games after returning from the rib fractures, he finished the season slashing a disappointing .196/.269/.385 with 16 homers and 14 steals over just 92 contests. Cowser also missed time with a fractured thumb and a concussion, but he entered the offseason with a clean bill of health.

Altuve said during the final weekend of the regular season that he played through a "pretty painful" right foot injury and would visit with doctors in the offseason before determining a treatment plan, Chandler Rome of The Athletic reports.

Altuve injured his foot in mid-September and missed one game before gutting it out over the final two weeks of the regular season. It's unclear whether Altuve has met with doctors yet to have the foot examined. Altuve finished the 2025 season with a .265/.329/.442 batting line, 26 home runs and 10 stolen bases over 155 games. The 35-year-old split his time fairly evenly between second base, left field and designated hitter, and it's uncertain where the Astros will have Altuve slotted in in 2026.

Angels general manager Perry Minasian said Saturday that Detmers (elbow) will move back into the rotation in 2026, Jeff Fletcher of the Orange County Register reports.

Detmers pitched well in his first season as a full-time reliever in 2025, posting a 3.96 ERA and 80:25 K:BB over 63.2 innings. However, Minasian feels the southpaw has "earned" another shot to be a starting pitcher in 2026 and is "a different guy" than the one who held a 4.90 ERA over 75 starts from 2021-24. Detmers struck out 418 batters across 385.2 frames during the latter stretch, so he's displayed strong swing-and-miss stuff as a starter. The lefty ended this season on the 60-day injured list with an injured pitching elbow, but he's expected to recover with rest.

Naylor (personal) will start at first base and bat fifth Tuesday in Game 3 of the ALDS versus the Tigers.

Naylor's availability for Game 3 had been in question, as he did not travel with the Mariners to Detroit while he and his wife were expecting the birth of their first child. He has since rejoined the team and is in the lineup as the series moves to Detroit. Naylor is 0-for-8 with a 1:1 BB:K in the first two games of the ALDS.

Brito (undisclosed) was activated from the 7-day injured list Sept. 25.

Brito landed on the 7-day IL in July due to an unspecified injury, and while he didn't see any action down the stretch of the minor-league season, the team has declared that he's returned to health by officially activating him. He appeared in 12 games for High-A Ashland in 2025, posting a 3.28 ERA and 1.30 WHIP with a 65:28 K:BB across 49.1 innings.

Mariners manager Dan Wilson said Monday that Naylor is with his expecting wife and it's uncertain whether the first baseman will be available for ALDS Games 3 and 4 in Detroit, Daniel Kramer of MLB.com reports.

Naylor did not travel with the team as he and his wife await the birth of their first child. He could be placed on the paternity list, which would make him unavailable for 1-to-3 games, but it does not seem to be a given that a move will be made. Luke Raley or Eugenio Suarez could fill in at first base if Naylor has to miss time. If it's Suarez who is used at first base, the Mariners would likely install Ben Williamson at third base. Naylor has gone 0-for-8 with a 1:1 BB:K in the first two games of the ALDS versus the Tigers.

Red Sox chief baseball officer Craig Breslow on Monday would not commit to Casas (knee) being the team's starting first baseman next season, Christopher Smith of MassLive.com reports.

Breslow also noted that while Casas is "doing really well" in his recovery from surgery in May to repair a ruptured patellar tendon in his left knee, he could not guarantee the 25-year-old will be ready in time for Opening Day. If healthy, Casas is the heavy favorite to break camp as Boston's primary first baseman, but the Red Sox are keeping their options open at this early juncture of the offseason. Injuries have limited Casas to just 92 games over the last two seasons, and he slashed only .182/.277/.303 across 29 contests in 2025 before his knee injury.

Red Sox chief baseball officer Craig Breslow said Monday that Narvaez will undergo arthroscopic surgery this week to repair the meniscus in his left knee, Chris Cotillo of MassLive.com reports.

Narvaez played through a damaged meniscus for much of the second half of the regular season and will have a cleanup procedure on the knee following Boston's elimination from the playoffs. It's considered a minor surgery and is not expected to affect the catcher's availability for the start of spring training. After slashing .273/.347/.439 in the first half, Narvaez hit only .187/.233/.387 after the All-Star break, suggesting the knee issue hampered his offensive production. The 26-year-old should enter the 2026 campaign at the top of the catcher depth chart for the Red Sox.

Munoz retired the side in order in the ninth inning against the Tigers on Sunday to earn the save in Game 2 of the American League Division Series. He struck out one batter.

After the M's took the lead in the bottom of the eighth, Munoz nailed down the win -- the organization's first home playoff win since 2001. Munoz took a loss to the Dodgers during the final weekend of the regular season, ending a streak of nine consecutive scoreless appearances, but he's bounced back in a big way with three perfect innings so far in the ALDS, and he now has his first career postseason save. The 26-year-old right-hander has emerged as one of the game's top closers, posting a 1.73 ERA and 1.03 WHIP to go along with a career-high 38 saves during the regular season.

Polanco went 3-for-4 with two solo home runs in Sunday's win over the Tigers in Game 2 of the American League Division Series.

Polanco played hero for the Mariners, putting the team on the board with a home run off Detroit ace Tarik Skubal in the fourth inning and adding another homer against Skubal in the sixth. It's a performance that will long be remembered in Seattle, as Polanco set the stage for the team to eventually take the lead for good in the eighth inning, after it took the loss to Troy Melton and company in Game 1. Polanco finished the regular season with a .329/.380/.634 slash line in September and may have saved the season in the club's second playoff game of 2025.