Rory McIlroy has confirmed he will be out of next week's Memorial Tournament due to a recurring rib injury.
It flared up as he lost a play-off to Graeme Storm at the BMW SA Open in January and he did not feature again until the WGC-Mexico Championship in March, where he finished four shots behind victor Dustin Johnson.
The injury kept McIlroy out of action for almost two months, with the four-time major victor returning at the WGC-Mexico Championship.
"It's disappointing to miss the Memorial Tournament", McIlroy said Friday in a statement released by tournament officials.
This year McIlroy targeted the Masters in a bid to complete the career Grand Slam of major titles, only to suffer a rib stress fracture at the SA Open in January.
During the Players, McIlroy was bothered by a recurrence of the injury but described the pain level as a "4 or 5".
Now, McIlroy is out of Memorial, which was his last planned start before June's U.S. Open at Erin Hills in Wisconsin.