In my youth-team days, I was always a left-winger who would stay close to the byline and put crosses in the box, so I could never cut inside and shoot. It was only when I joined Real Madrid and started playing in a more central position, and then on the right wing, that I suddenly realised I had a really dangerous weapon.

I never had problems with injuries as a kid or in the youth team. My injuries started at Chelsea, when I broke my foot during a pre-season game. That was just pure bad luck, but after that, I had some muscular injuries, too, so I had to get to know my body better.

You need to be very critical of yourself. There are a few very good managers who can make players better individually. Most managers think about the team process - and so you have to improve things on your own.

I guess my earliest football memories are of playing in the street and also the little pitches at school. I joined the local football team in my village when I was small, but we would play only once or twice a week. I honed my skills just by playing for fun with friends after school.

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.

What I learned from my years in Silicon Valley is that design can have a primary role in how a business is shaped, how a company can be design-driven. In my experience of large industry in Europe, that knowledge has been lost.

I quickly learned that asking if an interview space was wheelchair accessible was a bad idea; it gave a potential employer an immediate bad impression. It was either a black mark against my name, or a straight up discussion of why I wouldn't be able to work there because they had no wheelchair access.

I've never had that boring office job. All my jobs were music related.