What happened: The 30-year-old was hurt while swinging at a fifth-inning curveball on Friday and immediately grabbed his right arm. Manager Chad Tracy confirmed the severity of the issue following the game, noting it will require further evaluation by team doctors. Connor Wong replaced Mickey Gasper behind the plate for the remainder of the afternoon.
Why it matters: The dual injuries leave Boston with severely depleted catching depth ahead of a best-of-three series against the New York Yankees that begins Tuesday. The absence removes a key left-handed bat who provided crucial lineup flexibility down the stretch.
By the numbers: Gasper finishes the regular season with a .251 average and an .823 OPS over 67 appearances. He anchored the Boston offense during a dominant August, hitting .400 with a 1.671 OPS and nine extra-base hits in 30 at-bats.
What to watch: The Red Sox must finalize their roster decisions before Tuesday's opener. The Yankees are managing their own availability questions, as Aaron Judge, Giancarlo Stanton and Trent Grisham work toward returning to the field.