The scoreboard is shown at the 18th green at Pebble Beach Golf Links during the third round of the AT&T Pebble Beach National Pro-Am golf tournament in Pebble Beach, Calif., Saturday, Feb. 11, 2012. (AP Photo/Jeff Chiu)

The scoreboard on the 18th green of the Pebble Beach Golf Links of the AT&T Pebble Beach National Pro-Am golf tournament in Pebble Beach, Calif., Sunday, Feb. 12, 2012. Mickelson won the tournament after shooting a 8-under-par 64 to finish at total 17-under-par. (AP Photo/Eric Risberg)

Padraig Harrington of Ireland, hits from the second tee of the Pebble Beach Golf Links during the second round of the AT&T Pebble Beach National Pro-Am golf tournament, Friday, Feb. 10, 2012, in Pebble Beach, Calif. (AP Photo/Ben Margot)

Padraig Harrington, of Ireland, hits off the 16th tee of the Pebble Beach golf links during the final round of the AT&T Pebble Beach National Pro-Am golf tournament on Sunday, Feb. 12, 2012, in Pebble Beach, Calif. (AP Photo/Ben Margot)

Dustin Johnson hits from the 18th tee of the Spyglass Hill Golf Course during the second round of the AT&T Pebble Beach National Pro-Am PGA Tour golf tournament in Pebble Beach, Calif., Friday, Feb. 10, 2012. (AP Photo/Eric Risberg)