USA's Tiger Woods scratches his head as he walks off the course after the Ryder Cup PGA golf tournament Sunday, Sept. 30, 2012, at the Medinah Country Club in Medinah, Ill.

USA's Tiger Woods scratches his head as he walks off the course after the Ryder Cup PGA golf tournament Sunday, Sept. 30, 2012, at the Medinah Country Club in Medinah, Ill.