Phil Mickelson follows his drive from the 13th tee of the Shore Course at Monterey Peninsula during the first round of the AT&T Pebble Beach Pro-Am golf tournament Thursday, Feb. 6, 2014, in Pebble Beach, Calif. (AP Photo/Eric Risberg)

Phil Mickelson follows his drive from the 13th tee of the Shore Course at Monterey Peninsula during the first round of the AT&T Pebble Beach Pro-Am golf tournament Thursday, Feb. 6, 2014, in Pebble Beach, Calif. (AP Photo/Eric Risberg)