WGC-Cadillac ChampionshipMarch 3, 2016

Cadillac Championship: Mickelson opens with 67 and is tied for third

Phil Mickelson shoots a five-under at Doral, trails Marcus Fraser and Scott Piercy by one

Phil Mickelson shot a five-under 67 at Trump National Doral on Thursday and is in third place after the first round of the WGC-Cadillac Championship, trailing leaders Marcus Fraser and Scott Piercy by one stroke.

The feature group of the day -- Jordan Spieth, Jason Day and Rory McIlroy -- all played well. Spieth shot a three-under 69 and is tied for eighth, while McIlroy shot a one-under 7 and is, tied for 16th and Day an even-par 72 to tie for 28th.. This is Spieth's first tournament since missing the cut two weeks ago at the Northern Trust Open.

"I'm trying to gain some momentum back after Los Angeles," Spieth said. "That was a bummer. "I've been working pretty hard on my game over the last week and a half to try to get it ready for a challenging golf course. Yeah, but only the scores will end up telling."

Fraser, who won last month's Maybank Championship Malaysia, finished his round with seven birdies. Piercy, who is seeking his first win since the 2015 Barbasol Championship, averaged just 1.4 putts per green in regulation, best in the field.

Adam Scott, the winner at last week's Honda Classic, shot a four-under 68, and is tied for fourth with Danny Willett, Jason Dufner and Charley Hoffman.