USA's Jason Dufner reacts after making an birdie putt to win the ninth hole during a foursomes match at the Ryder Cup Friday, Sept. 28, 2012, at the Medinah Country Club in Medinah, Ill.

USA's Jason Dufner reacts after making an birdie putt to win the ninth hole during a foursomes match at the Ryder Cup Friday, Sept. 28, 2012, at the Medinah Country Club in Medinah, Ill.