Alex Ferguson praise José Mourinho for being one of the world's best managers, as he's won the Champions League with Inter and Porto, along with major titles in Spain and England.

"It is unfair really," Ferguson told Clare Balding during a BT Sport documentary to be broadcast on Boxing Day. 

"He’s good looking, he’s got that sort of George Clooney bit in his hair now. But I think he is a great example, he can speak five languages or whatever he can.

"He goes and becomes an interpreter for Bobby Robson, follows him to Barcelona, works under Louis Van Gaal; he is learning all the time.

"He [Mourinho] has got a determination, he wants to be a coach.

"He never played the game, by the way – you tell me how many presidents would give a manager a job who has never played the game? None. But he has done it.

"Then he goes and manages a small team in Portugal, then goes to Porto and wins the league, wins the Uefa Cup, wins the European Cup, goes to Chelsea and wins the league. Goes to Inter Milan. 

"That is an example to anyone who wants to do well, you shouldn’t let the barriers get in your way if you want to get there."