I'm going to miss his childlike laugh. I'll forget the goals but I'll never forget that laugh.

I've seen teams spend £150 million and get nowhere near the Champions League. It has taken Manchester City a billion to get there. There are no guarantees.

The reason I became a manager was to have full control over training. If you are a coach, you are bound by what the manager wants you to coach. The other reason is that I just like the company of football people.

It took me 35 years of being involved at a decent level of football to become manager at a great club like Celtic.

Everybody at Barcelona loves Messi. They can't speak highly of him.

I think what I've actually achieved as a manager does sometimes get a bit overlooked, because all people think about is the media side of things. They tend to forget I've not done so bad.

I tried to talk to the ref but it is easier to get to see the Pope. If I'm in London again and I get mugged I hope the same number of people turn up to protect me. There were six police, four stewards and even a UN peace observer out there.