The Diamondbacks have released Wily Mo Pena, according to the team's official Twitter feed. The club designated the 29-year-old for assignment ten days ago.
Pena's all-or-nothing approach at the plate resulted in no walks, 19 strikeouts, and five homers in his 46 plate appearances for the D'Backs this season. Pena, who is now free to sign with any club, drew interest from the Tigers, White Sox, Orioles, and Astros this past winter before he agreed to a minor league deal with Arizona.