I'm quite shocked by the recent British media stories about an alleged brawl between myself and Dereck Chisora. I am a professional prize fighter and let my fists do the talking only inside the ring. I don't want to comment on Chisora's psychological issues.

When you're successful for so many years, the scariest part is that you're getting too comfortable because you've had so much success.

Sometimes it's boring because it takes time, but it's enjoyable. So beating up people for a living is really fun.

[Anthony Joshua] is the best man in the division and I believe this excitement speaks for itself. This is what the fans want and this fight must happen.

In Soviet times the border was closed so we couldn't get out of the country, and I had been reading Robinson Crusoe. I wanted to see the ocean, I wanted to see boats, I wanted to see black people, because we didn't have that in the Soviet Union. I was all excited by that stuff.

I don't like to get hit, who likes it? I probably wouldn't do this sport if I was getting hit that much.

I run, but boxing conditioning is different, so you have to get used to running in the ring. Boxing movements are very different. Swimming is one of the best because every single muscle is working. I swim a lot. I train very hard at things that mimic boxing. I have to do mostly sport-specific training, such as lots of sparring.