Dustin Johnson hits off the second tee on Sunday, Feb. 9, 2014, during the final round of the AT&T Pebble Beach Pro-Am golf tournament in Pebble Beach, Calif. (AP Photo/Ben Margot)
Dustin Johnson follows the ball after hitting off the second tee on Sunday, Feb. 9, 2014, during the final round of the AT&T Pebble Beach Pro-Am golf tournament in Pebble Beach, Calif. (AP Photo/Ben Margot)
Dustin Johnson hits off the seventh tee on Thursday, Feb. 6, 2014, during the first round of the AT&T Pebble Beach Pro-Am golf tournament on the Spyglass Hill Golf Course in Pebble Beach, Calif. (AP Photo/Ben Margot)
Dustin Johnson hits off the fourth tee Thursday, Feb. 6, 2014, during the first round of the AT&T Pebble Beach Pro-Am golf tournament on the Spyglass Hill Golf Course in Pebble Beach, Calif. (AP Photo/Ben Margot)
Dustin Johnson hits off the fourth tee on Thursday, Feb. 6, 2014, during the first round of the AT&T Pebble Beach Pro-Am golf tournament on the Spyglass Hill Golf Course in Pebble Beach, Calif. (AP Photo/Ben Margot)
Dustin Johnson follows his drive off the ninth tee during the second round of the Tournament of Champions golf tournament, Saturday, Jan. 4, 2014, in Kapalua, Hawaii. (AP Photo/Marco Garcia)