He's back. Tiger Woods won his fifth Masters title yesterday, ending a decade-long championship drought. Woods became the second-oldest winner of the title at the age of 43, completing a comeback that was rife with personal and professional adversity--including an admission of infidelity that ultimately ended his marriage, a number of serious injuries that resulted in multiple back operations, and even an addiction to painkillers. Joe LaCava signed on to work with Woods as the golfer's caddie back in 2011, right in the midst of Woods's troubles. He's stuck by his boss through thick and thin, refusing to leave even when Woods advised him to find another golfer to caddie for.