When I'm thinking of sports, when I'm thinking of a boy growing up and being a man, I'm thinking of three things - honor, integrity, and toughness.

Young guys kind of have this chip on their shoulder of, 'I want to prove something,' right? 'I've got to prove how tough I am. I've got to prove how good I am.' And man, now as I'm getting older, I think it's almost sad when guys my age and older still have that chip on their shoulder.

If you look across my career, whether it be mixed martial arts or wrestling, it's very, very, very rare that I lose to someone that I'm not supposed to.

It's like, hey, I've done what I could do, I've accomplished a lot, and now this - especially with wrestling - if this next generation wants to pass me up, great job. Good for them.

And when I go around and talk to schools, what I tell the kids are, first of all, you have to accept each other's differences. Some of you are going to be a crappy football player, some of you are going to be a great mathematician. Whatever it is, accept each other's differences and help prop each other up.

I realised I'd been spoiled at Liverpool. We were used to winning. In Italy I grew up as a person. I didn't enjoy the football, mind. It was very defensive, but I became a better player because of the work I had to do around the box. Off the pitch, I learned about what to eat and what to drink to be successful, and I learned about life.

Where does it stop? You get offered money for your wedding, then for your kids, new houses, holidays... We earn enough from football and sponsorships, why do you need any more?

I think that most players enjoy playing football, but, like in everything, there are good moments and bad moments.