Rory McIlroy, the world's top golfer, just walked off the golf course at the Honda Classic on Friday without finishing his round after being 7 over par on the ninth hole.
According to golf reporters at the event, McIlroy hit his approach into the water at the par-5 18th, which was his ninth hole of the day, and after taking a drop and hitting his shot, McIlroy "signaled to his caddie that they'd be leaving and he walked straight across the practice putting green and to his car" to go to his home in Jupiter, Florida.
McIlroy did not appear to be physically injured and told reporters, "I'm not in a great place mentally. I can't really say much, guys. I'm just in a bad place mentally.''
Because McIlroy was not injured, players and reporters have said his actions were terrible form.
McIlroy, who started the season with much fanfare after switching to Nike golf clubs, has struggled with his swing, and speculation has started about whether his frustrations with his clubs boiled over on Friday.
McIlroy will be swarmed with questions in the days ahead for what many are saying was extremely poor sportsmanship.
UPDATE: McIlroy released a statement indicating he had to withdraw because of pain in his wisdom tooth:
"I sincerely apologize to The Honda Classic and PGA TOUR for my sudden withdrawal," McIlroy said. "I have been suffering with a sore wisdom tooth, which is due to come out in the near future. It began bothering me again last night, so I relieved it with Advil. It was very painful again this morning, and I was simply unable to concentrate. It was really bothering me and had begun to affect my playing partners. I came here with every intention of defending my Honda Classic title. Even though my results haven't revealed it, I really felt like I was rounding a corner. This is one of my favorite tournaments of the year and I regret having to make the decision to withdraw, but it was one I had to make."