From what I can see, Rooney has been hurt nearly every year for the past few. He just got the the “100%” for the world cup last week. I have also noticed since 2006 a few notables on the English national squad have has fairly severe injuries. Maybe those who follow this more closely can comment.
For most of these guys, their performance training should have a focus of prolonging their careers, more so than improving performance. Younger guys are a different breed as they need the increased performance.
A guy like Rooney who makes close to 200,000 pounds a week needs to be healthy. A few years of injury plagued seasons and he’ll end up on the cover of gossip magazines naked in bed with transvestites.