Bryson DeChambeau moved to the top of the leaderboard following a flawless third round at the Memorial Tournament in Ohio, with Rory McIlroy six shots off the lead in a tie for 11th after a stunning 64 which included six birdies and an eagle on the fifth. 

Looking for his second PGA Tour title after winning last year's John Deere Classic, Californian DeChambeau claimed a score of 66 on Saturday, thanks to six birdies, to hold a one-shot lead over a trio not far behind.

Patrick Cantlay, who also carded 66 on the third day, played a very different round to his compatriot, with four birdies, two eagles and two bogeys to sit joint second.

Also in a three-way tie for second are midway leaders Joaquin Niemann and Kyle Stanley after both players ended the day with scores of 70.

Nineteen-year-old Chilean Niemann, who had shared the top spot after day one, had a mixed third round with bogeys on the 10th, 15th and third holes cancelling out three birdies as an eagle on the seventh saw him reach two-under for the day.

Stanley joined Niemann and Cantlay on 13 under ahead of Sunday's final round thanks to six birdies and four bogeys.

South Korea's Byeong Hun An sits a shot further behind after a flawless 69, picking up birdies on the 13th, 15th and seventh for fifth, while England's Justin Rose is two shots further back in sixth - also carding 69 but with three bogeys on the back nine along with six birdies.

Tiger Woods is just one place further back in a four-way tie for seventh.

McIlroy’s incredible round was his lowest score since a 64 he posted when winning in the Arnold Palmer Invitational in Orlando in March.

It lifted him into the mix, but there's still a lot of work to do to capture  second US PGA Tour victory of the season.