Rory McIlroy, of Northern Ireland, reacts as he loses his club after hitting a tree root on the third hole during the first round of the PGA Championship golf tournament Thursday, Aug. 11, 2011, at the Atlanta Athletic Club in Johns Creek, Ga.

Rory McIlroy, of Northern Ireland, reacts as he loses his club after hitting a tree root on the third hole during the first round of the PGA Championship golf tournament Thursday, Aug. 11, 2011, at the Atlanta Athletic Club in Johns Creek, Ga.