Hunter Mahan hits from the 10th fairway during the first round of the Cadillac Championship golf tournament, Thursday, March 8, 2012, in Doral, Fla. (AP Photo/Lynne Sladky)

Hunter Mahan tees off on the 11th hole during the first round of the Cadillac Championship golf tournament, Thursday, March 8, 2012, in Doral, Fla. (AP Photo/Lynne Sladky)