I feel like I'm more a fan of tennis rather than it being men's or women's. I enjoy watching doubles as well when it's on. I think that there are certain players that I enjoy watching on the men's and women's side. There's some players that I don't enjoy watching on both sides.

I just enjoy watching tennis. And there's things that you can learn from the men's and the women's game.

Earlier in my career, I used to spend a lot of time practising my tennis on court. Now I've learned that it's better to do just a couple of hours on court and two gym sessions a day. That's what's made me fitter and stronger.

My speed is something that has made a difference to my whole career. When I've felt quick and I'm moving well, it makes a huge difference to my entire game. When I feel a bit slower, I end up doing a lot more defending. When I'm a bit quicker to the ball, I feel I can attack a lot more.

Anyone that plays knows football is up and down. As much as you want to, you can't control everything. You take what positives you can.

Looking back, I'm surprised I had the nerve to do it, but I'm glad I did. Performing the songs and performing in film was just a part of my personality, just like football and boxing at one point in my life. I was able to lose myself in both of them, and that was a good feeling.

My kids know the importance of being active - and that's why teaming up with the USTA was such an organic fit for me. They are making strives to get families outside - and using tennis as a way to get kids to stay active.

We were sent outside to our backyard to play sports together all the time - no boy and girl differentiation, just two teams playing.