Bleday was diagnosed with an ACL sprain in his left knee after undergoing an MRI on Tuesday, Martin Gallegos of MLB.com reports.
Athletics manager Mark Kotsay didn't rule Bleday out for the rest of the season, but there's no guarantee the outfielder makes it back on the field even if he doesn't require surgery to address the injury. If Bleday remains out, he will finish 2023 with a .203/.313/.373 slash line, 10 home runs and 27 RBI across 284 plate appearances. Catcher Carlos Perez (thumb) was brought back from the 10-day injured list on Tuesday to fill Bleday's roster spot.