Superstar Cristiano Ronaldo is one football's most successful players of all time, but where would he be without former Manchester United boss Sir Alex Ferguson? The Portuguese has now explained the Scotsman's role in his stunning development.
Click through the mini-gallery above to see some pictures of Ronaldo as a teenager at United.
Ronaldo was signed by the Red Devils from Sporting Lisbon in 2003 after impressing in a friendly against United, during which he troubled some of the Manchester team's most experienced defenders despite being just a teenager.
In his early days at the Old Trafford club, the Portuguese would often frustrate his colleagues by trying to do too much on the ball, something Ferguson recognised and was determined to iron out.
Ronaldo has now credited his football knowledge to the Scottish boss, saying it was his former manager's coaching that made him the player he is today.
"Of course, in the beginning of my career he was so important to me because I moved from Sporting to Manchester and had that Portuguese mentality – too many stepovers, decision making was not the best," the 33-year-old told DAZN.
"So he taught me how to do it. In the Premier League they don't fall over so easy, they are tough.
"As I've said many times, he taught me everything. He was like a father to me. He helped me a lot at Manchester United."
Ronaldo went on to score 118 goals and assist a further 68 strikes in 292 matches for United, with whom he won nine trophies, including three Premier League titles and the UEFA Champions League.
Where do you think Ronaldo would be if he had not played under Fergie? Let us know in the comments section below.