Twins president of baseball operations Derek Falvey revealed Saturday that DeSclafani will be out for the season after undergoing flexor tendon surgery on his right elbow, Betsy Helfand of the St. Paul Pioneer Press reports.

The Twins placed DeSclafani (elbow) on the 60-day injured list Thursday.

Twins president of baseball operations Derek Falvey said DeSclafani will open the season on the 15-day injured list with a right forearm strain, Betsy Helfand of the St. Paul Pioneer Press reports.

DeSclafani (elbow) got through another bullpen session without issue Thursday and his next step is to pitch in a minor-league game, Nick Nelson of Twins Daily reports.

DeSclafani (elbow) felt good after a 35-pitch bullpen session Friday, Betsy Helfand of the St. Paul Pioneer Press reports.

DeSclafani (elbow) threw another bullpen session Monday as he ramps back up following a brief shutdown period, Do-Hyoung Park of MLB.com reports.

DeSclafani has been slowed in Twins' camp by right elbow soreness, Bobby Nightengale of the Minneapolis Star Tribune reports.

DeSclafani (elbow) is considered fully healthy at the start of spring training, Bobby Nightengale of the Minneapolis Star Tribune reports.

The Mariners acquired DeSclafani (elbow), Mitch Haniger (back) and cash considerations from the Giants on Friday in exchange for Robbie Ray (elbow), Jeff Passan of ESPN.com reports.

DeSclafani (elbow) was transferred Monday from the 15-day injured list to the 60-day injured list, Alex Pavlovic of NBC Sports Bay Area reports.