Latest Red Sox injuries & transactions

September 4th, 2026

This page will be updated throughout the year with all the latest Red Sox injury news and transactions.

INJURY UPDATES

OF
Injury: Right quad soreness
Expected return: Sept. 6 at earliest
Status: Out of the lineup for first two games of four-game set in Baltimore, and not expected back for the third game. Finale on Sunday is still in play. (Last updated: Sept. 4)

LHP
Injury: Left shoulder inflammation
IL date: April 29 (retroactive to April 26, 60-day IL)
Expected return: Late season at best
Status: In first side session in over three months, threw 16 pitches, all fastballs. Will likely throw another side on Sept. 8. (Last updated: Sept. 4) More >>

RHP Tanner Houck
Injury: Torn ulnar collateral ligament right elbow/right flexor pronator strain
IL date: Feb. 10 (60-day IL)
Expected return: Aiming for late regular season
Status: Provided he has no ill effects from the sim game he threw on Sept. 4, will pitch an inning at Double-A Portland on Sept. 8 for start of Minor League rehab assignment. (Last updated: Sept. 4) More >>

RHP
Injury: Right flexor strain
IL date: April 3 (retroactive to March 31; transferred to 60-day IL on April 14) 
Expected return: Late season at best
Status: Has started facing hitters and could be in line for rehab assignment soon. (Last updated: Sept. 4) More >>

1B
Injury: Left hamstring strain
IL date: Aug. 31 (10-day IL)
Expected return: Sept. 10 at earliest
Status: Is starting to reintroduce baseball activities. Red Sox remain hopeful he will return the day he is first eligible. (Last updated: Sept. 3) More >>

RHP Justin Slaten
Injury: Right elbow inflammation
IL date: Aug. 16 (15-day IL, retroactive to Aug. 13)
Expected return: September
Status: Still feeling some symptoms in his elbow, and his throwing program has been temporarily shut down. (Last updated: Sept. 3) More >>

DH
Injury: Left hamstring strain
IL date: Aug. 16 (10-day IL)
Expected return: Possibly late in regular season or postseason
Status: MRI exam on Aug. 17 revealed significant strain. Didn't make much progress in first couple of weeks post-injury. (Last updated: Sept. 2) More >>

RHP
Injury: Right shoulder inflammation
IL date: Sept. 1 (15-day IL)
Expected return: Mid-September
Status: Team is hopeful Guerrero won't require much more than the minimum time required on the IL. (Last updated: Sept. 1) More >>

LHP
Injury: Lumbar strain
IL date: Sept. 1 (60-day IL)
Expected return: 2027
Status: Had been on 7-day IL in Minors since Aug. 13. Was recalled on Sept. 1 and placed on 60-day IL to open a 40-man roster spot. (Last updated: Sept. 1)

INF
Injury: Left wrist fracture
IL date: July 29 (10-day IL)
Expected return: Late season or 2027
Status: Has started mobility and strength exercises and is running and throwing. (Last updated: Aug. 29) More >>

1B
Injury: Left abdominal strain
IL date: March 25 (retroactive to March 22; transferred to 60-day IL on April 22)
Expected return: 2027
Status: Underwent arthroscopic surgery on his left wrist and is likely out for the season. (Last updated: Aug. 6) More >>

RHP
Injury: Stress reaction, right elbow
IL date: July 21 (60-day IL)
Expected return: Late September at earliest
Status: Had been optioned to Triple-A Worcester on May 22. The Sox recalled him and then put him on the 60-day injured list on July 21 due to a stress reaction in his right elbow. (Last updated: July 21) More >>

RHP
Injury: Right flexor irritation
IL date: March 25 (retroactive to March 22; transferred to 60-day IL on May 22)
Expected return: September at earliest
Status: Has resumed throwing, starting at a distance of 100 feet. (Last updated: July 17) More >>

LATEST TRANSACTIONS

Sept. 2
• RHP : Optioned to Triple-A Worcester
• LHP : Recalled from Triple-A Worcester

Sept, 1
• RHP : Placed on 15-day IL
• RHP : Recalled from Triple-A Worcester
• INF : Reinstated from 60-day IL
• RHP : Selected from Triple-A Worcester
• LHP : Recalled from Triple-A Worcester, placed on the 60-day injured list
• 3B Brett Harris: Designated for assignment

Aug. 31
• 1B : Placed on 15-day IL
• DH/C/1B : Recalled from Triple-A Worcester