Rory McIlroy, of Northern Ireland, lets go of his club as he hits a drive on the 15th hole during the second round of the PGA Championship golf tournament Friday, Aug. 12, 2011, at the Atlanta Athletic Club in Johns Creek, Ga.

Rory McIlroy, of Northern Ireland, lets go of his club as he hits a drive on the 15th hole during the second round of the PGA Championship golf tournament Friday, Aug. 12, 2011, at the Atlanta Athletic Club in Johns Creek, Ga.