Rory McIlroy's girlfriend, tennis star Caroline Wozniacki, follows McIlroy during the first round of the 78th Masters Golf Tournament at Augusta National Golf Club on April 10, 2014 in Augusta, Georgia. Bill Haas of US grabbed a one-stroke clubhouse lead over defending champion Adam Scott in the first round of the 78th Masters. AFP PHOTO/Timothy A. CLARY        (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)