Imagine him 3 stone lighter?
Imagine him 3 stone heavier.....still faster than Owen.
he's not "that" fast, its his speed on the ball which is incredible as most people have a huge difference between running speed and running speed while dribbling.
The thing about him is, I think more than anything confidence, where most people see 2/3 defenders standing almost next to each other they'll look to go around them. Ronaldo would see those players and just think to himself screw going around and will just run right into them and has a ridiculous ability to move the ball in and around his feet in those situations. If you look at compliation vids the number of times he goes through defenders rather than around is insane, and the amount of goals he scores not through fantastic shooting but by dribbling through 4/5 players, not shooting but going around the keeper and tapping it in. His brilliance came in the dribbling, the good shot is just an added bonus.
Would be very good to see him come back, you can see the scars on his knee's, he's had some truly awful injuries and the majority do give up in his situation, to come back once from one injury to one knee is impressive. To do it, for both knee's both injured more than once(i think, not sure how many times he's screwed which knee) is incredible in terms of determination and patience.
It would be great to see him back in the world cup, though to be perfectly honest if Beckham while barely playing inbetween MLS and training at Arsenal can get token appearances for England, a couple qualifying or friendly appearances are well in order for Ronaldo. Frankly Beckhams draw for england would be nothing on the interest in seeing Ronaldo get a game for Brazil again.
Would be even nicer if it was a game over here as it would be at the Emirates most likely, that would be fantastic to see.