Zach Johnson of the United States reacts after putting on the 10th green during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Peter Morrison)

Photo by: Peter Morrison

Zach Johnson of the United States reacts after putting on the 10th green during the first round of the British Open Golf Championship at Muirfield, Scotland, Thursday July 18, 2013. (AP Photo/Peter Morrison)