Bill Haas played a five-hole stretch in 5 under and shot a 7-under 64 to take the lead in the Waste Management Phoenix Open.
Rickie Fowler bogeyed the 16th in a 66 that left him tied with Billy Horschel, Bryson DeChambeau, Chris Kirk and Chesson Hadley.
Justin Thomas shot 68. He birdied made a messy double bogey on 16 and bogeyed the 17th after chipping into the water.
Jon Rahm is tied for seventh at minus-four, while Phil Mickelson is one of several golfers tied for 46th at one-under.