LOS ANGELES (AP) — Dodgers reliever Chris Withrow has been diagnosed with a ligament tear in his right elbow and been told he needs Tommy John surgery.

The team said Thursday that the right-hander was examined last week by a team physician, who diagnosed a tear of the ulnar collateral ligament. Withrow went on the disabled list and will proceed after consulting another doctor next week.

Last week, Withrow was demoted to Triple-A Albuquerque. He had a 2.95 ERA in 20 appearances for the Dodgers this season, with 28 strikeouts and 18 walks in 21 1-3 innings while holding opposing hitters to a .143 batting average.

He last pitched for the Dodgers on May 20 in New York.