Fernando Llano/Associated Press
Rory McIlroy has already won three of the four World Gold Championship events in his career. If the first round of the WGC-Mexico Championship is any indication, he may soon make it a clean sweep.
McIlroy carded a six-under 65 to take a two-stroke lead over Bubba Watson and Justin Thomas after Thursday's round at Club de Golf Chapultepec just outside Mexico City.
After struggling on the short grass at last week's Genesis Invitational, McIlroy returned to his old putter and was back in top form. He recorded five birdies and an eagle against one bogey, with the PGA's putting strokes gained metric indicating he subtracted 3.