Dodgers reliever Brock Stewart is done for the season, as he's set to undergo season ending shoulder surgery, manager Dave Roberts told reporters on Friday.

The injury news about Stewart being shut down was hardly a surprise. The righty hasn't pitched since the middle of August due to his sore shoulder.

Stewart will undergo a debridement procedure, and will be on the shelf for at least six months. L.A. general manager Brandon Gomes said that the franchise does not expect him to be ready for spring's Opening Day, but that he could return sometime in the first half of the season if all goes well.

Stewart was acquired by the Dodgers from the Twins at the trade deadline, and finishes the season with a 2.63 ERA in 37.2 innings pitched. Stewart's injury is the latest blow to a Dodgers bullpen that has been up-and-down during the second half of the season.