Rory McIlroy was forced to go barefoot before leaving his PGA Championship practice round early on Tuesday, May 12. "I've got a blister on my pinky toe on my right foot," McIlroy, 37, told reporters before his round. That became evident during his round on Tuesday, when McIlroy was seen taking off his right shoe and sock to let things air out before ultimately leaving the course on a cart after just three holes. Prior to that, McIlroy was in obvious discomfort as he limped his way around Aronimink Golf Club in Newtown Square, Pennsylvania.