Kuznetsova: "I once found toothpaste in my sneakers".

Two-time Grand Slam singles winner Svetlana Kuznetsova shared her memories of immoral behavior on the part of her opponents: "Once I was playing in China.

I was tired and really wanted to go home. But it was an obligation to be here. I told myself I had to finish the tournament somehow and go home.

I just wasn't in the mood. The end of the year, China, it's not the best thing to look forward to. And then my opponent started shouting "Come on!" in my face. I was so wound up that I won the match.

It's not very civilized to shout in someone's face when they make mistakes. It's not respectful of the opponent.

I've also heard the story of Lena Dementieva. In the Olympic dressing room, an athlete took Lena's sneakers, put them in the garbage can and poured her food on them.

I once went to the locker room in Canada, put on my sneakers and there was toothpaste inside. I couldn't believe my eyes, I thought, "Seriously, can you do that?"

There's no such thing in ballet; nobody puts splinters in their shoes. But such pranks do exist."