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The hard-throwing 26-year-old reliever was acquired by the Braves in May, a little more than a year after he underwent Tommy John surgery.
As Withrow was sidelined throughout this past season, he also recovered from lower back surgery that was completed to repair a herniated disc in December 2014. He has the potential to serve as a primary setup man in Atlanta's bullpen this year.
Mark Bowman is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.