Rory McIlroy has pulled out of next week's BMW PGA Championship at Wentworth Club in England as he continues to recover from a rib injury.

Having been sidelined for several weeks by a rib problem that caused him back pain earlier this year, the world No. 2 reported similar discomfort — albeit not as severe — during The Players Championship last week.

He will now sit out the European Tour's flagship event, with a view to regaining full fitness ahead of the U.S. Open, which takes place June 15-18 at Erin Hills in Wisconsin.

In a statement released Friday by the European Tour, McIlroy said: "Having had a reaction to my earlier rib injury, I have been advised to take a conservative approach to my recovery which unfortunately means I have to withdraw from the BMW PGA Championship next week.

"It's a disappointing decision to have to make, but I have to ensure I make a full recovery.

"I will now continue the process of preparing my game for the U.S. Open and the rest of the season."

European Tour chief executive Keith Pelley added: "There is no question that Rory will be missed at the BMW PGA Championship but his health is the most important thing and we wish him a speedy recovery."

Mcllroy won the BMW PGA Championship in 2014 courtesy of a final-round 66 and was set to be the headline act at this year's tournament.