He'll have Tommy John surgery Wednesday, performed by Rangers team physician Dr. Keith Meister.
Manager Ron Washington also announced that Roy Oswalt, who allowed eight runs on 11 hits in Monday's 15-8 loss to the Los Angeles Angels and has struggled to find consistency in his six starts in Texas, will be moved to the bullpen. Ryan Dempster, acquired minutes before Tuesday's non-waiver trade deadline, will take his place. Dempster's first start is slated for Thursday.
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