After leaving his last start Thursday with a right elbow injury, Chase Whitley will undergo Tommy John surgery, the Yankees announced Monday.
Whitley met with head team physician Dr. Christopher Ahmad, who recommended the surgery. Ahmad will perform the surgery Tuesday at New York-Presbyterian Hospital.
Before suffering the injury, Whitley was 1-2 with a 4.19 ERA, 1.293 WHIP and 16 strikeouts in 19.1 innings this season.
The team did get some good news Monday, though. Masahiro Tanaka threw a 29-pitch bullpen session earlier in the day at Nationals Park ahead of their two-game set against the Nationals starting Tuesday. The Yankees placed their ace on the 15-day disabled list with a forearm strain and writs tendinitis on April 28.