#3 He is still in excellent physical and mental condition
It is one thing to be determined to go the distance, and but an entirely different thing to have the body to put up with the work.
The rigorous and demanding nature of professional football means that footballers' bodies often take a beating. We find this manifesting itself in their later years as they become slower and less fit.
It is not an uncommon sight for footballers to take a backseat in top teams or move on to lesser leagues once they approach their 30s, to accommodate their declining bodies. But Cristiano Ronaldo is unlike any player in the history of the game.
Despite the fact that he will turn 35 in a couple of months, the former Manchester United man looks as sharp and fit as ever. He does not give any indication that he is ready to slow down, with his strict exercise and dietary regimen ensuring that his body is in excellent condition.
Given his supreme fitness, it would not be a surprise to see Ronaldo playing for another four of five years as he himself stated. And if that is the case, it is foolhardy to imagine that he will not break Ali Daei's record.