Real Madrid superstar Cristiano Ronaldo recently did some promotional work in Turkey, where he revealed how Sir Alex Ferguson is responsible for his favourite number!
The Portuguese admitted that he wasn't hoping to wear the No.7 jersey when he joined former club Manchester United, but rather it was Ferguson who gave him the shirt number.
"When I was a kid, I always played wearing the number seven or number 10, but when I joined Manchester United, actually, I wanted the number 28," Ronaldo said.
"Sir Alex Ferguson had other plans, he gave me the number seven and that was a huge responsibility.
"But because of his decision, the number seven became my favourite number."
Ronaldo is widely regarded as one of the Red Devils' greatest No.7s ever, along with other illustrious names such Eric Cantona, David Beckham and George Best.
What number would you wear if you were a pro footballer, and why?