Jordan Spieth's preparation for the BritishOpen has been the subject of much debate, but the favorite to lift Luis Tiant Jersey the Claret Jug is confident he will be "100 percent" ready when he tees off at St. Andrews on Thursday.Spieth, the Masters and U.S. Open champion who can overtakeinjured Rory McIlroy at the top of the world rankings , opted against gaining familiarity with links golf...