Mayer said Wednesday that he's now "ready to go" after his 2023 season ended due to a left shoulder injury, Gabrielle Starr of the Boston Herald reports.

Mayer (shoulder) has been shut down for the remainder of the season at Double-A Portland, Ian Browne of MLB.com reports.

Mayer was placed on the 7-day injured list by Double-A Portland on Saturday with left shoulder inflammation, Chris Cotillo of MassLive.com reports. The move is retroactive to Aug. 3, so he can return as soon as Thursday.

Mayer went 3-for-4 with a double, two RBI and a run scored for Double-A Portland on Sunday.

Mayer went 4-for-4 with two doubles, a home run, two RBI and two additional runs scored for High-A Greenville on Sunday.

Mayer went 3-for-5 with a home run and four RBI in Saturday's game for High-A Greenville.