If the Cardinals are going to overtake the Brewers and Cubs in the National League Central, they'll have to do it without their hard-throwing closer.

Trevor Rosenthal was placed on the 60-day disabled list on Wednesday and will need Tommy John surgery to repair the ulnar collateral ligament in his right arm.

The 27-year-old Rosenthal, an All-Star in 2015, is 3-4 on the year with a 3.40 ERA and 11 saves in 50 appearances. He had 76 strikeouts in just 47 2/3 innings of work.

Rosenthal was placed on the 10-day DL on Aug. 16 when Cardinals manager Mike Matheny noticed Rosenthal's velocity was nowhere near his 98 mph average in a 5-4 loss to the Red Sox. Rosenthal had struck out 38 percent of the batters he faced this season and was a big reason the Cardinals surged after the All-Star break.