Trevor Rosenthal to undergo Tommy John surgery, miss rest of season

ST. LOUIS -- The Cardinals announced Wednesday that closer Trevor Rosenthal will require Tommy John surgery for his right elbow injury.

"I think just the timing of it, being right in the middle of this race and the way my personal season had been taking shape and the way the team has been playing recently. Tough timing," Rosenthal said.

"It felt like we were getting in a groove, I was in a groove, and to kind of have this happen and take a piece away from a really good team is a little bit of a bummer."

Rosenthal, who recorded 93 saves in 2014-15, lost the closer's job a year ago to Seung-Hwan Oh but reclaimed it this season after Oh struggled. Rosenthal recorded 11 saves, giving him 118 over the past four seasons. He is 3-4 with a 3.40 ERA this year.

Cardinals general manager Mike Girsch said Rosenthal will have surgery next week.

"We hoped for better news," Cardinals manager Mike Matheny said. "Somebody is going to have to step in. He was really throwing the ball well."

Rosenthal had been placed on the 10-day disabled list Thursday with right posterior elbow irritation, then moved to the 60-day DL on Wednesday to make room on the 40-man roster for left-handed pitcher Ryan Sherriff, whose contract was purchased from Triple-A Memphis.

The Cardinals also optioned right-hander Josh Lucas to Memphis.

The Associated Press contributed to this report.