Tiger Woods of the United States plays a shot off the 7th tee during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States prepares to play off the 5th tee during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States plays out of the rough on the first fairway during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday, July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States plays a shot from the third tee during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States plays a shot off the 6th tee during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States gestures on the 6th fairway during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States lines up a putt on the second green during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States walks along the third hole during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States plays out of the rough on the first fairway during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States plays a shot on the 8th hole during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States plays a shot on the 8th hole during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States gestures on the 7th green during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States waits to play on the 5th fairway during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States prepares to play on the 5th fairway during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States plays a shot off the 7th tee during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Tiger Woods of the United States prepares to play off the 5th tee during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Jon Super)
Phil Mickelson of the United States prepares to play off the 6th tee with his caddie Jim Mackay during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Scott Heppell)
Rory McIlroy of Northern Ireland reacts after playing a shot off the 6th tee during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Scott Heppell)