Scottsdale, Ariz. ? Bill Haas, Jason Bohn, Tom Gillis and Champions Tour player Tom Lehman shot 6-under 65s in chilly conditions Thursday to share the lead in the suspended first round of the Phoenix Open.

The start of play was delayed four hours because of heavy frost at TPC Scottsdale and only the scheduled morning starters completed the round.

The temperature dipped into the mid 20s overnight and it was 39 when play started at 11:40 a.m. The high was 47 on a cloudless day in the desert.

“It’s cold,” Haas said. “You’ve got four layers on.”

Another long frost delay was expected today, likely forcing most of the second round to Saturday and possibly setting up a 36-hole finish Sunday.

Lucas Glover, sporting a thick beard that prompted calls of “Grizzly” and “Brian Wilson” from fans, was a stroke back along with Chris Couch and Ben Crane.

“It was cold, and it’s getting colder,” Glover said.

Phil Mickelson, coming off a one-stroke loss to Bubba Watson last week at Torrey Pines in San Diego, topped the group at 67.

“It wasn’t too bad,” said Mickelson, who played his final nine holes in short sleeves. “I expected the golf course to be frozen and balls to be bouncing on the greens quite a ways. It played terrific. The greens were receptive.”