If you want a measure of how private a place the dressing room was when I was growing up at Manchester United, consider this: even Sir Alex Ferguson would knock before coming into the dressing room at the Cliff, the old training ground. The dressing room is for the players - and the players only.

From United's point of view, it is always difficult to tell just when a young footballer is going to mature into a first-class professional ready to play at the highest level, but the story of how Pogba slipped away from United has more than one strand to it.

I first remember Wayne Rooney from a game at Old Trafford in 2002 when he came on as a late substitute for Everton and, in a brilliant 15-minute performance, skipped past me on a couple of occasions.

My view is that you show Messi one side or the other, and if he goes past you, he goes past you. But if he slips it through your legs, then you have to obstruct him and take the foul. Just don't ever let yourself be nutmegged.

My work ethic is from sports.

I think it's very important that you don't start thinking about your life after football when you are 33 or 34. There are many more amazing things in this world, and it's important to think about these things before you retire.

When you are young and you play football, you must play in the street. When you go to a club at the age of five, and the coach says you must pass this, eat this, drink this... it's not a life. Young people must train for themselves, play football every day, and not have three coaches, with each one saying this and this.

Basketball is my first love. If my health had permitted me, I would still be playing, but I am glad in retrospect that everything happened the way it did.