Tiger Woods began the day at Bay Hill 11-under par with a one stroke lead over Graeme McDowell. He finished the day five strokes ahead of McDowell and won the Arnold Palmer Invitational with a 13-under par performance.

It was not all puppy dogs and ice cream cones for Tiger, though. According to Jason Sobel of the Golf Channel, via Twitter:

Tiger didn't receive the customary hug and handshake from Arnold Palmer on final green. There's a reason. Still efforting the full story.

Update 6:54 p.m.: Sobel is reporting that rumors on the course suggest Palmer was taken to the hospital with high blood pressure.

Update 8:36 p.m.: Palmer will remain in the hospital overnight. "Nobody is overly concerned about the prognosis."