I feel like mental toughness has been a huge part.

More Quotes by Sofia Kenin

I want to show who I am, show my best tennis, show why I'm there, why I belong.

When I wasn't playing with Barbie dolls, I was always playing with different kinds of balls, and my dad said, let's try tennis.

As I started developing, as I started playing more tournaments and getting higher in the rankings, I saw I had massive potential.

I've always wanted to be No. 1 in the world.

Dreams come true. If you have a dream, go for it and it's gonna come true.

I know she's a true champion, and she's the best among the best. She's obviously Serena for a reason. I've always watched her, so it will be a little different to be actually playing against her.