Cristiano Ronaldo turned 40 on February 5, with fans gathering in Times Square to perform his trademark "Siu" celebration in an attempt to set a new world record

Cristiano Ronaldo's legacy for both club and country is shining bright on his 40th birthday. To celebrate the superstar's birthday, the world is looking back at Ronaldo's one-of-a-kind career that started when he was just a teenager in Portugal.

In his own mind, there's no doubt about it. Cristiano Ronaldo is the greatest scorer in soccer history. So says the Portuguese superstar on the cusp of his 40th birthday. Ronaldo, who turns 40 on Wednesday,

Cristiano Ronaldo has enjoyed a glittering career and is showing no signs of slowing down despite turning 40, but he has already got his eye on what he wants to do next