American golfer Brooks Koepka has continued his dominance at the PGA Championship, bullying one of the toughest courses in the country and shooting a third-round even-par 70.
The world number three used a mixture of strength and finesse in a round consisting of three birdies and three bogeys to lead by seven shots, the same margin he had when he teed off for his third round.
There are four players sitting in a tie for second at five-under. They include Thailand's Jazz Janewattananond and American trio of Harold Varner III, Luke List and world number one Dustin Johnson.
Koepka got off to a hot start, making birdie on two of his first five holes to open up an eight-shot lead, but the thick rough of the Bethpage Black Course cost him two bogeys on the ninth and 10th holes.
The 29-year-old made a birdie and bogey in the final six holes to sign for a third-round 70.
He will hold a record seven-shot lead going into the final round in an attempt to become the second man to win back-to-back PGA Championships since the event became a stroke play event in 1958.
Kiwi Danny Lee shot a third-round one-over par 71 to sit in a tie for 14th, 11 shots off the leader.
Koepka is gunning for his fourth major victory in less than two years, having won last year's PGA Championship and the past two US Opens.