Rory McIlroy, of Northern Ireland, looks over his putt on the 11th green during the first round of the U.S. Open Championship golf tournament in Bethesda, Md., Thursday, June 16, 2011.

Rory McIlroy, of Northern Ireland, looks over his putt on the 11th green during the first round of the U.S. Open Championship golf tournament in Bethesda, Md., Thursday, June 16, 2011.