Since I retired, I very much enjoy watching Serena Williams play. While I was playing, she was one of the toughest players I ever faced. Her ground strokes are so solid, her serve is one of the most powerful in women's tennis, and mentally she is just so strong.

For me, the biggest thing with money has always been independence - just the biggest.

I lost my dad way too early and it was agonisingly awful. I missed him so much and I hated knowing that I could never again pick up the phone to tell him about my day.

I'm about the present.

Sport is one way of keeping kids off their phones.

I don't think some athletes understand how big it is to be an athlete, what they can do with just a simple gesture of shaking a kid's hand. It can make a fan's day. It can make a fan's life.

My ultimate goal is for that next generation coming up, who didn't see me play, go, 'Oh, he used to play football?'

Yugoslavia was a kind of superpower. Great movies. Beautiful novels. Great rock-and-roll. We became a superpower in basketball. The problem is that people needed to identify more strongly with it after Tito and his awful, tricky way of leading the country.