The Twins announced via Twitter that they have designated left-hander Matt Maloney for assignment. The move, along with their demotion of Danny Valencia to Triple-A, will allow the club to promote Darin Mastroianni and select the contract of right-hander P.J. Walters.
Minnesota first acquired the 27-year-old off of waivers from the Reds last Halloween. Maloney didn't impress in his limited opportunities this year as he allowed ten runs with five strikeouts and a walk in eleven innings.