Need proof that clean living is everything? These five major winners haven't held up as well as John Daly

John Daly isn't exactly a finely-tuned athletic instrument, but the newly-50 PGA Champions player has a swing that looks remarkably similar to the one he used to win the 1991 PGA and 1995 British Open. Daly showed flashes of his old form at his senior debut in the Insperity, hanging around the first page of the leaderboard before finishing 17th. He also led the tournament in both driving distance (315.8 yards) and driving accuracy (83 percent). Daly is a lock to get as many sponsor exemptions as he wants to take, and the durability of his power game means he's probably going to be more relevant as a senior player than a lot of guys who had more "stable" careers on the regular tour. Here are five former major winners around Daly's age whose swings haven't held up as well.