I'm not sure, but if he has then it hasn't impacted him so far. In his last 92 league games he has 97 goals, if there is a sign of injury taking it out of him or slowing him down, it's not really evident. Henry didn't pass the 50 game barrier in a season again after 2003-04 season, an indication of more serious injury problems, something I think is more apparent throughout his career rather than Ronaldo's, who is like a freak in terms of injury. I'm not sure I really see the parallel between Ronaldo and Henry, I don't see him having the same injury setbacks at all, pace and power etc yes, but to the extent of Henry's injuries, no. Disregarding Ronaldo's injured first season at Madrid which still saw a goal per game output, he hasn't had the same thing. Henry's goal output dropped from 06 onwards from 30+ per season to an average well under 20. Ronaldo's as his career has progressed has added more to his game, and his totals have been increasing as time goes on. There doesn't seem to be much to suggest Ronaldo is going to suddenly regress and stop producing at the levels he currently is in the next two years, nothing at all, despite what happened to Henry - if anything, judging on his most recent seasons he looks to be bettering his records. Maybe he will and you're right, but I can't see it, I reckon it's a safe bet to say in 2 years time we will still be talking about Ronaldo as one of the best players in the world, and his goal output will still be 40+ a season (if he's still in Spain anyway).