He said: “For me, United is the biggest club in the world. Sir Alex has two very talented youngsters in Ronaldo and Wayne Rooney, who will continue to learn every season.
“United are the perfect club at which to improve as a young player. They are the biggest club in the world yet still spend time working with young players and giving them the chance to learn.
“Not a lot of great clubs provide that opportunity. If I was an 18-year-old and all the big clubs in the world wanted to sign me, I'd pick United.
“I would get the chance to play for a big club in the top competitions and yet still get to work and learn in a good atmosphere.”
He also had a kind word for his old boss.
"I played under some great managers in my career, including Michel Platini, Franz Beckenbauer and Guy Roux. But for me, Sir Alex is the best," said Cantona.
"He is the best I have ever worked with and has many years left at United."