Kevin Na reacts after his tee shot on the fourth hole during the fourth round of the Masters golf tournament Sunday, April 14, 2013, in Augusta, Ga. (AP Photo/Matt Slocum)

Photo by: Matt Slocum

Kevin Na reacts after his tee shot on the fourth hole during the fourth round of the Masters golf tournament Sunday, April 14, 2013, in Augusta, Ga. (AP Photo/Matt Slocum)