For the first time in his PGA Tour career, Bryson DeChambeau will enter a tournament looking to defend a title.DeChambeau's breakthrough on the PGA Tour came last year at the John Deere Classic, which tees off on Thursday at TPC Deere Run in Silvis, Illinois. After entering the final round four strokes off the pace, DeChambeau birdied six of his final nine holes for a one-shot win over Patrick Rodgers.