After teeing-off on the fifth hole, Rory McIlroy called for medical attention for his injured wrist. On the third hole, McIlroy played a shot off a root, bending the neck of his club as it made contact with the ground. Immediately after hitting the shot, the US Open champion looked to his wrist, while wincing in pain after apparently suffering some kind of injury. The problems persisted as he finished the third hole and hit his tee shot on the fourth, with medical personnel finally checking him on the fifth green.
After a few minutes of evaluation, the on-course physio told McIlroy he couldn't injure his wrist anymore by continuing to play, which seemed to comfort him a bit. McIlroy also received attention, in the form of a quick massage, in an effort to dull some of the pain. It appears his wrist injury involves a nerve as the shock-waves stretch from his hand to his shoulder.
After receiving attention, McIlroy played his third shot out of the bunker on the par five, and seemed to be swinging easier and with less pain than before. He got up-and-down from the bunker, holing his putt for birdie before walking to the next hole.
It appears McIlroy will continue to play through the pain at the PGA Championship in Atlanta. As of now, the young Irishman is through five holes and at even-par on the day.