He may have the heart of a champion, but Tiger has the mouth of a trucker.
The world's former number one golfer, who's play has been sloppy over the past year as he struggles to come back from his epic sex scandals, let loose a torrent of foul language this weekend at the British Open.
Missing a putt for par on the 13th hole in his third round, Tiger roars, "Why the f-ck did you do that?" at himself. The cameras and microphones caught the outburst.
The broadcast commentators, acknowledging the outburst, said, "He is running hot."