Aaron Barrett underwent Tommy John surgery on Friday.
Aaron Barrett (elbow) likely needs Tommy John surgery.
Aaron Barrett recently visited Dr. James Andrews to get an opinion on his ailing right elbow.
Nationals transferred RHP Aaron Barrett from the 15-day disabled list to the 60-day disabled list.
Nationals placed RHP Aaron Barrett on the 15-day disabled list, retroactive to August 6, with a right elbow sprain.
Nationals optioned RHP Aaron Barrett to Triple-A Syracuse.
Nationals activated RHP Aaron Barrett from the 15-day disabled list.
Aaron Barrett (biceps) will begin a rehab assignment with High-A Potomac on Wednesday.
Aaron Barrett (biceps) has been playing catch.
Nationals placed RHP Aaron Barrett on the 15-day disabled list with a right biceps strain.
Aaron Barrett was removed from Thursday's contest against the Brewers with an apparent injury.
Nationals recalled RHP Aaron Barrett from Triple-A Syracuse.
Aaron Barrett has been placed on the 7-day disabled list at Triple-A Syracuse due to back spasms.