Round 1 at 2011 Arnold Palmer Invitational at Bay Hill

1 of 10 Fred Vuich/SI
bogeyed his last two holes, but he still finished with a 3-under 69.
2 of 10 David Cannon/Getty Images
was one of several players who failed to break 80 in the first round.
3 of 10 Fred Vuich/SI
struggled to a 2-over 74.
4 of 10 David Cannon/Getty Images
made three birdies and a bogey for a 2-under 70.
5 of 10 Fred Vuich/SI
made four birdies, three bogeys and an eagle for a 3-under 69.
6 of 10 John Raoux/AP
leads by three strokes after a bogey-free 66.
7 of 10 Fred Vuich/SI
Mickelson stopped to sign a few autographs after his round.
8 of 10 Fred Vuich/SI
birdied his last hole of the day to shoot a 2-under 70.
9 of 10 Fred Vuich/SI
had trouble finding the fairway, but he managed to finish with a 1-over 73.
10 of 10 Fred Vuich/SI
will need a good round on Friday to make the cut after opening with a 5-over 77.