Oakland Athletics starting pitcher Jarrod Parker suffered yet another elbow injury that has left his baseball future in question.
The A's reported Parker refractured the medial epicondyle in his right elbow, per Ken Rosenthal of Fox Sports. The incident occurred on Parker's 12th pitch during a simulated game Thursday, according to Rick Eymer of the Associated Press.
Parker has twice undergone Tommy John surgery and suffered another broken elbow last season.
The 27-year-old was the ninth overall pick in the 2007 draft by the Arizona Diamondbacks and after five seasons in the minors was traded to Oakland.