McIlroy plays down knee injury

Rory McIlroy has revealed he battled a knee injury for most of the opening round at the Memorial Tournament.

Fresh from winning the BMW PGA Championship on the European Tour last week, the world number six was once again in commanding form on Thursday as he carded a nine-under-par 63 to take a three-stroke lead.

The 25-year-old made four birdies on the front nine, but it came at a cost as he injured his knee on the par-four seventh, one of the holes he birdied.

It wasn’t too big a distraction though as he went on to make another three birdies and two eagles on the back nine.

“Honestly I don’t know. I felt it on my second shot on (hole) seven today. I think my foot might have just got stuck in the ground a little bit and torqued my knee,” he said.

“It was painful right after I hit shots and then I sort of walked it off for the next one and it was okay, and then it would be painful again. I guess I put it out of my mind when I was over the golf shots.

“I’m going to go and get some treatment on it now and have a physio look at it. Hopefully it will be all right for tomorrow. This is a new injury. I haven’t felt this before.”