After an 8-under 63 in the second round, Spencer Levin leads the Waste Management Phoenix Open by four shots.
Levin is four clear of Harrison Frazar, still on the course, and five ahead of Derek Lamely.
John Huh is at the halfway mark at 8 under, while Webb Simpson and Josh Teater are a shot further behind Levin.
Seven players are on 7 under including Bubba Watson, Ben Crane, Ryan Palmer, Bo Van Pelt, Jason Dufner, James Driscoll and Kevin Na.
With six holes to go in his round, Phil Mickelson was T-58 at 1 under. He played those last six holes in 3 under par and moved up to T-22 at 4 under.