FILE - In this June 16, 1967, file photo, Jack Nicklaus watches after teeing off on the third hole during the second round of the 67th U.S. Open golf tournament at Baltusrol Golf Club in Springfield, N.J. Dustin Johnson had the perfect temperament to handle the mental test last year at Oakmont when he won the U.S. Open. Supreme focus was a trait shared by Ben Hogan, Jack Nicklaus and Tiger Woods. (AP Photo/File)