WATCH - McIlroy posts yet another stunning round
Rory McIlroy shot a stunning 11-under-par round of 61 to storm to the top of the leaderboard at the Wells Fargo Championship in North Carolina.
The world number one started the weekend three shots off top spot but he produced a record-breaking display in his third round to overhaul all his rivals.
McIlroy parred his first two holes before going on to pick up 11 birdies - including nine in 10 holes at one stage - in a second successive blemish-free round to move to 18-under par for the tournament.
It was the Northern Irishman's lowest round on the PGA Tour, beating the 62 he made here in 2010 - the previous course record at Quail Hollow.
McIlroy had looked on target to shoot a sub-60 round - only six players have ever scored 59 in a PGA Tour event - but he had to settle for pars on the final two holes
Despite that, McIlroy's remarkable display left him with a four-shot lead heading into the final day, with Webb Simpson his nearest challenger after the local hope carded a 68.
American Robert Streb, who led after the first round and was joint-top with Simpson at the halfway stage, is a further three shots back in third place.
McIlroy told Sky Sports of his round: "It was incredible, it was nice just to get on a run like that.
"I felt like every shot I looked at, I was comfortable over it and I really putted well today, that was the thing that pleased me most.
"I rolled the ball really really nicely, and I don't think I've rolled it like that in quite a while, so it was nice to see a lot of putts drop.
"And to break my own course record here is pretty nice."