You have to be careful when you time a move to one of the biggest clubs. Occasionally, these young players do not realise what a good thing they are on to when they know that they will be playing every week.

I do wonder whether the bigger the game is, the more the risks that David Luiz decides to take.

At United, we like to have wingers who give the team width and pace.

At first sight, Pogba was notable for his size and physicality, and when you got to know him, there was also a confidence about him.

Little details about young footballers catch your eye when you have been around a big club for a long time. At first, it can be minor things, like the way certain young players stand out from the group when the academy lads cross paths with the senior team on their way to training in the morning.

I would never do anything to damage United, whoever the owners might be, and I am sure that no United fan would want me to do that.

I never wanted to lose my place in the United team, much less my place at the club. What went on beyond the pitch was none of my business.

As a club, there was never any middle ground with Newcastle. They were as high as the sky or in a pit of despair.

At United, my United, we had been honed into a ruthless team who played great football but, ultimately, were there to win football matches and league titles. At Newcastle, they could certainly play on their day, and the crowd was formidable, but there was a weakness - a vulnerability that you could seek out.

I don't know why anyone would want to be a goalkeeper. It is a hard position to do well.

As a young footballer at United, Steve Bruce was one of the senior pros I really admired.

I suppose I should have realised that the very fact I was still playing for United at 38 years old was a sign that there was not enough pressure on us senior players from those coming into the side.

What I like about Pochettino is the way that he looks in control. He is in control of his players, in control of the way that they play.

Sometimes fear can bring performances out from you.

As players, we were paid to do a job we loved - in my case, at the club I supported. And nothing I did could be allowed to interfere with that. The manager would not have permitted it.

It goes without saying that no one at United ever expected any help. We understood that decisions can go against you. We believed we were the better team, and therefore, if the referee got his decisions right, then we would win the vast majority of our games.

For my whole career, I concentrated on that cycle of games from August to May and being mentally and physically ready.

United are about attacking football, and everything else has to takes its place behind that.

I am always loath to assign goalkeepers too much importance, but you have to make an exception for the greats.

Peter Schmeichel could make the goal look much smaller when you glanced up to hit a shot.

We know Mourinho can win league titles - he is brilliant at it - but how long can he do it at one club?

There was no better manager at developing young players than Sir Alex. He knew just when to bring them in and take them out, and he believed in Paul Pogba. For once, in Paul's case, it did not work out. The timing was wrong, and the difference between expectation on the player's side and the manager's idea of his development did not match up.

I expect positive play from Manchester United all the time, whether you're at home or away.

I don't go looking for the post-match team pictures posted by players on Instagram, but usually, someone ends up showing them to me, or I notice them when they get printed in the newspapers.