Cristiano Ronaldo fell foul of Alex Ferguson during his early years at Manchester United for doing too many stepovers.
"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."
The Portugal international developed a close relationship with Ferguson during his time at Old Trafford and has been open with his admiration for his former manager on numerous occasions.
Upon news that Ferguson underwent emergency surgery for a brain haemorrhage in May, Ronaldo was quick to offer his support to the United icon, wishing him his best in his recovery.
My thoughts and prayers are with you, my dear friend. Be strong, Boss! pic.twitter.com/kmih28Xpsq— Cristiano Ronaldo (@Cristiano) May 5, 2018
Ronaldo said on his Instagram: "My thoughts and prayers are with you, my dear friend. Be strong, Boss!"