The Portugal star's representative believes the 29-year-old to be history's finest sportsman and is confident he will break his personal goal record this season
Real Madrid forward Cristiano Ronaldo is history's greatest-ever athlete and is worth €1 billion, according to his agent, Jorge Mendes.
The Portugal international has scored a staggering 19 goals in 11 games in all competitions so far this season and is already the favourite to retain the Ballon d'Or prize for 2014.
Mendes who claimed earlier this week that Ronaldo would retire at Madrid at the age of 40, despite rumours of a bid from Manchester United - believes his client will go down in history as the best sportsman the world has ever seen