The four-time major winner would not be a surprise winner, as he is arguably one of the greatest players ever to have played the game.
However, most believe his chance of a first-time US Open win had come and gone, but his form, while not spectacular, suggests otherwise.
He looked in great form at the Masters, where he tied third, and before that he was in a tie for fourth place in the Shell Houston.
He won the AT&T at Pebble Beach in March and was tied seventh in his most recent event the HP Byron Nelson back in May.
He was forced to withdraw at the Memorial, so he comes into US Open fresh and ready for one last big challenge at a tournament where he has enjoyed nine Top 10 finishes, which includes five runner-up medals.
Going one better in San Francisco this week cannot be ruled out!