
BOSTON — Red Sox No. 2 prospect Marcelo Mayer will make his MLB debut in Game 2 of Boston’s doubleheader against the Orioles on Saturday.
Mayer is batting sixth and playing third base. First pitch between the Red Sox and Orioles is scheduled for 6:35 p.m.
Mayer got word he was being called up during the first game of Boston’s doubleheader. He arrived in the Red Sox clubhouse right after Boston’s 6-5 walkoff win in Game 1.
Boston placed Alex Bregman (right quad strain) on the IL.
Baseball America ranks Mayer No. 8 on its Top 100 list. The site ranks him Boston’s No. 2 prospect behind Roman Anthony.
The Red Sox selected the left-handed hitter fourth overall in 2021. He was Boston’s highest draft selection since 1967 when the Sox picked Mike Garman third overall. The 22-year-old is batting .271 with a .347 on-base percentage, .471 slugging percentage, .818 OPS, nine homers, five doubles, one triple, 43 RBIs, 31 runs, 20 walks and 38 strikeouts in 43 games (193 plate appearances) for Worcester this season.
BALTIMORE ORIOLES (16-34) @ BOSTON RED SOX (27-26) · FENWAY PARK · BOSTON, MA · GAME 53
FIRST PITCH: 6:35 p.m. ET
TV CHANNEL: NESN
RADIO: WEEI 93.7 FM
PITCHING PROBABLES: LHP Trevor Rogers (2025 debut) vs. RHP Lucas Giolito (1-1, 7.08 ERA)
RED SOX LINEUP:
- Jarren Duran LF
- Rafael Devers DH
- Rob Refsnyder RF
- Kristian Campbell 2B
- Trevor Story SS
- Marcelo Mayer 3B
- Nick Sogard 1B
- Connor Wong C
- Ceddanne Rafaela CF





