MLB Player News

Horn (elbow) was released by the Tigers on Monday.

Horn underwent Tommy John surgery in July and will presumably remain out for the majority of the 2027 season while rehabbing. He last appeared in the big leagues in 2025 with Detroit, posting a 1.59 ERA and 1.59 WHIP with a 10:7 K:BB across 11.1 innings.

Diaz was designated for assignment by the Tigers on Monday.

Diaz was scooped up off waivers from the Diamondbacks in June, though he didn't perform well when given his opportunities in the big leagues. He'll head to the waiver wire after losing out on a 40-man roster spot.

Austin (knee) was outrighted to Triple-A Iowa on Monday.

Austin underwent right knee surgery in March, though it's currently unclear where he's at in his rehab. He'll remain with the organization but is no longer a member of the 40-man roster following Monday's transaction.

Smith was sent outright to Triple-A Reno on Monday, Alex Weiner of ArizonaSports.com reports.

Smith struggled in limited big-league action during the 2026 campaign, slashing .183/.262/.294 with three home runs, 12 RBI, two stolen bases and 12 runs in 40 games. He'll have the option to elect free agency after being outrighted Monday.

Adams was sent outright to Triple-A Albuquerque on Monday.

Adams will lose his place on the 40-man roster after making his big-league debut in 2026. He surrendered five runs on five hits and two walks over one inning in his lone appearance.

The Mariners outrighted Wilson to Triple-A Tacoma on Monday, Ryan Divish of The Seattle Times reports.

The 28-year-old appeared in just two games for the Mariners last season and played in just 19 minor-league contests, slashing .304/.403/.429 between High-A Everett and Triple-A Tacoma. He suffered a broken left thumb in early May and missed the remainder of the 2026 campaign.

Stevens elected free agency Monday after clearing waivers.

Stevens drew a big-league opportunity with the Rockies in 2026, but he failed to take advantage, slashing .036/.176/.036 with three RBI and one run in 16 games. He'll look for an opportunity elsewhere after choosing free agency.

The Mariners outrighted Wilson to Triple-A Tacoma on Monday, Ryan Divish of The Seattle Times reports.

Wilson was removed from the 40-man roster after appearing in 54 games for the Mariners last season. He slashed an ugly .192/.263/.296 with three home runs, 11 RBI, 18 runs scored, five stolen bases and a 12:47 BB:K across 136 trips to the plate with Seattle.

Castellano elected free agency Monday after clearing waivers.

Castellano made his first big-league appearance with the Rockies in 2026, allowing four hits while striking out two over three innings and collecting a save. However, he'll look for a chance elsewhere after choosing free agency Monday.

The Red Sox designated Rivera for assignment on Monday, Chris Cotillo of MassLive.com reports.

The 23-year-old lefty made his big-league debut last season for Boston, logging a 6.30 ERA, 1.40 WHIP and 10:6 K:BB across 10 regular-season innings. He ended the campaign on the 60-day injured list with a strained lower back.