Ireland's Seamus Power is five shots off the lead after the opening round at the 3M Open in Blaine, Minnesota.
The Waterford native carded a 68, which puts him on three under, with leader Richy Werenski holding a one shot advantage over a field that includes major winners Bubba Watson and Brooks Koepka.
Power's round included birdies on the first, sixth before further joy on the back nine with birdies on the 10th and 12th. His sole bogey came on the fourth.
Werenski's 63 has the opening round leader on eight under, one clear of fellow American Michael Thompson and two ahead of a five-way tie for third including Tony Finau.
Watson is one ahead of Power on four under after carding a 67, while Koepka finished on one under for the day.
Bubba from DEEP. 😯
— PGA TOUR (@PGATOUR) July 23, 2020
He moves to 3-under on the day.#QuickHits pic.twitter.com/pLPfMzlk5l
Tommy Fleetwood is one shot behind Koepka after a level par 71.
"I just played solid golf. The tee ball wasn't as good as I wanted it to be, but found some fairways and took advantage with my irons," said Werenski, who hit 14 of 18 greens in regulation.
"My irons were really good."
Werenski capped his round in style at the par-five 18th where he reached the green in three and then sunk a 21-inch putt for a closing birdie.
Defending champion Matthew Wolff and Finau and were among a group of six golfers two shots off the pace.
Finau, who finished eighth at the Memorial Tournament last week, started his day on the back nine and reached the turn at two under before warming up with five birdies over an eight-hole stretch that included a bogey at the par-four seventh.
"I got into a good rhythm out there," said Finau, who hit 17 of 18 greens in regulation.
"The golf course is definitely gettable if you hit it in the fairway. The greens are just the right moisture where they're not going to spin a lot or bounce over, so you're kind of just hitting your number and the ball's staying around that position."
Fleetwood, who completed his quarantine after arriving in the United States two weeks ago, made double-bogey at his closing hole for an even-par 71 in his first start since The Players Championship was cancelled in March.
World number four Dustin Johnson (78), fresh off a missed cut last week, withdrew with a back injury shortly after a round that came apart over a three-hole stretch where he went bogey, double-bogey and quadruple-bogey.
"I feel like I'm driving it well, but the iron play, first six or seven holes hit it close and then the rest of the day kind of struggled a little bit with iron play," said Johnson.
