He started out as a skinny winger with floppy hair, quick feet and outrageous skills, wowing the world at the age of 17 after moving to Manchester United. He developed at Real Madrid into perhaps the most famous athlete on the planet and one of soccer’s greatest ever goal-scorers — and is still going strong heading into his fifth decade.

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,

"I'm talking about numbers," Ronaldo told Spanish television show "El Chiringuito" in an interview on Monday. "I think I'm the most complete player to have existed. In my opinion, I think it's me. I do everything well in football: with my head, free kicks, left foot. I'm fast, I'm strong.

On his 40th birthday, Ronaldo has currently scored 923 career goals, and he is showing no signs of slowing down. In fact, he bagged 460 goals in his thirties alone. Only time will tell if the legend can reach 1,000 goals, but the world will be watching every step of the way.

Never lacking in confidence, Cristiano Ronaldo chose himself this week during a discussion about the greatest soccer player of all time. As part of

Cristiano Ronaldo is still playing professional football after turning 40, but he has some way to go to match the world record in that regard.

There have been better players than the Portuguese phenomenon, but none more committed to self-improvement and physical fitness