San Francisco Giants

Jose Butto

RP

Butto made an early exit from his appearance against the Padres on Wednesday due to a forearm issue, and he'll now spend at least the next couple of weeks on the injured list getting his forearm back to full strength. Blade Tidwell will come up from Triple-A Sacramento to take Butto's place in the bullpen.

Joel Peguero

RP

Peguero was moved to the 15-day injured list Wednesday due to a Grade 2 hamstring strain, so it's a positive sign that he's already been cleared to resume mound work. He'll presumably be re-evaluated Tuesday morning to ensure he didn't suffer any kind of setback, at which point the next step in his rehab could be established. A timetable for Peguero's return has yet to be disclosed by the club.

Sam Hentges

RP

Hentges continues to progress in his recovery from surgeries on his left shoulder and right knee. He opened the season on the 15-day injured list and will need to embark on a rehab assignment before being cleared for major-league action. The last time Hentges pitched in the majors was in 2024 with the Guardians, when he appeared in 25 regular-season games and posted a 3.04 ERA, 0.97 WHIP, nine holds and a 27:5 K:BB across 23.2 innings.

Hayden Birdsong

RP

Birdsong was diagnosed with a sprained UCL in mid-March and elected to go under the knife. The right-hander will miss the entirety of the 2026 campaign and likely at least the first couple months of 2027.

Reiver Sanmartin

RP

The southpaw will be sidelined until June after suffering a right hip flexor strain earlier this month. Once healthy, Sanmartin is not a given to return to the active roster with the big club.

Parks Harber

3B

One of the top position prospects in the Giants organization, Harber wasn't in serious consideration for a spot on the Opening Day roster but had impressed nonetheless throughout the spring, slashing .357/.424/.571 over 33 Cactus League plate appearances before sustaining the hamstring injury Saturday. He now appears on track to miss at least the first month of the minor-league season while recovering from the injury, but once he's back to full health, Harber is expected to report to Double-A Richmond, according to Pavlovic.

Rowan Wick

RP

Wick's move to the 60-day IL was fully expected, as San Francisco signed him earlier this weekend with the knowledge that the right-hander would miss the entire 2026 season while recovering from Tommy John surgery, which he underwent in November. The 33-year-old's contract includes a club option for 2027, so the Giants will have the ability to closely monitor his rehab program in the months to come before deciding whether to retain him this winter. Wick hasn't pitched in the majors since 2022 but was one of the top relievers in Japan's Nippon Professional Baseball this past season, when he turned in a 1.13 ERA, 0.90 WHIP and 58:13 K:BB over 47.2 innings.

Jason Foley

RP

Foley was non-tendered by the Tigers last month after missing most of the 2025 season following arthroscopic right shoulder surgery. He's not expected to be ready to pitch with the big club until midseason, per Susan Slusser of the San Francisco Chronicle. Foley will remain under team control through 2028, so it could be a sneaky signing if he can return to pre-surgery form. The 30-year-old led the Tigers with 28 saves during his last full season in 2024, posting a 3.15 ERA and 46:20 K:BB over 60 regular-season innings.

Randy Rodriguez

RP

The transaction frees a spot on the 40-man roster for Luis Arraez, whose signing was officially announced Tuesday. Rodriguez underwent Tommy John surgery last September and will miss the entire 2026 season.