Rocco Mediate and Tiger Woods have finished in a tie at the U.S. Open, forcing an 18-hole playoff for the first time since 2001. The playoff at Torrey Pines will be Monday. Woods will try to win his 14th major, while Mediate, 45, will try to become the oldest player to win the U.S. Open. The U.S. Open is the only major to play an 18-hole playoff. The last time it happened was seven years ago, when Retief Goosen beat Mark Brooks at Southern Hills.