Venters now faces the challenge of returning from a second Tommy John surgery. Under that scenario, Venters would miss two full seasons. Andrews also performed the first Tommy John surgery on Venters when he was a minor leaguer in 2005. Venters underwent Tommy John surgery to repair a torn ulnar collateral ligament on Thursday afternoon in Gulf Breeze, Fla. But Venters experienced occasional pain last season, limiting him to a career-low 58 2-3 innings, and he had more problems in spring training. Also, the chances of a full recovery are considered less promising for someone who needs the Tommy John procedure a second time, though some have returned to pitch effectively. This marked the second time in eight years that Dr. James Andrews performed the surgical procedure on the Braves reliever.