Double Major winning Rory McIlroy will tee-up in this week’s Wells Fargo Championship having slipped outside the top-10 on the World Rankings for a first time since December 2011.

However the current World No. 11 ranked player is unconcerned heading into this week’s $US 6.9m event at the Quail Hollow Golf Club located in the leafy suburbs to the south of Charlotte, North Carolina.

“It doesn’t bother me that I’m outside the top-10 and it’s the nature of the rankings,” he said.

Rory McIlroy launches into a drive at the 9th hole or his 18th in the Wells Fargo Championship Pro-Am.

“I’ve earned more world ranking points this year than the top three players in the world, so it’s not like I’ve had chance to win, and it’s just that I haven’t quite won.

“It’s to do with the fast start and the great year I had in 2012, and now all these points are just starting to come off, and that’s the reason.

“But hopefully I can get myself back up into that sort of territory I have been at for the last few years.”

McIlroy, who turns 25 on Sunday, will be looking for the birthday present of a first PGA Tour victory since late 2012 and his second success at Quail Hollow since shooting a final round 62 to win a maiden Stateside success in 2010.