PINEHURST, NC - JUNE 11:  Rory McIlroy of Northern Ireland walks over away from the practice range with father Gerry McIlroy during a practice round prior to the start of the 114th U.S. Open at Pinehurst Resort & Country Club, Course No. 2 on June 11, 2014 in Pinehurst, North Carolina.  (Photo by Streeter Lecka/Getty Images)