Tony Finau 

REUTERS: Tony Finau rolled in four birdies on the back nine, including three in a row, to break away from the pack Sunday and win the 3M Open at TPC Twin Cities in Blaine, Minn.

Finau’s 4-under-par 67 lifted him to a 72-hole score of 17-under 267. South Korea’s Sungjae Im (68) and Argentina’s Emiliano Grillo (71) tied for second three back at 14-under 270.

Scott Piercy, who held at least a share of the lead after each of the first three rounds and a four-stroke lead entering Sunday, stumbled to a 5-over 76. He finished in a three-way tie for fourth.

That left the door wide open for Finau to collect his third PGA Tour victory.

Finau was 1 under through 10 holes before making birdie at Nos. 11, 14, 15 and 16. He found himself in the lead after he birdied the 14th and Piercy, playing one group behind, made triple bogey at the same hole.

When Finau sank a downhill, right-to-left birdie putt from 31 feet away at No. 15, he had gone from behind by three shots to ahead by two in a matter of two holes.

Tony Finau passes Dustin Johnson in world rankings