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Cristiano Ronaldo will make a spectacular return to Manchester United.
The BBC documentary Cristiano Ronaldo: Impossible to Forget features his first time at the club between 2003 and 2009.
This film tells the story of Portugal's star, his childhood, his time at United Madrid and Real Madrid, and his personal growth, and how he rose to become the most famous sporting brand in the world.
This is the story of those who knew and followed his career: players like Rio Ferdinand, Nani and Lucy Bronze, Gary Lineker, Alan Shearer and journalists, coaches, and family friends.
How much do you know about his remarkable life? Take a look at the documentary, then take our quiz.