I think there are still better players than me.
— Karolina Pliskova
Maybe America hates me.
I'm an introvert and phlegmatic, so I don't show my joy.
It's a plus to have a twin sister in the same tournaments.
It's good to have someone on the tour so close to you - I mean, like, my sister. There is no one closer to me on the tour, so I don't need any other friends than her. We always talk about everything; not only about tennis, but about all the other stuff around tennis.
Serena is tough to beat; to get over her in the rankings is hard.
Tennis is a big thing in the Czech Republic.
Nobody's feeling, after 10 days of playing every day, 100 per cent ready or fit.
I know all the opponents are behind me, so I should win every match, which is tough.
I'm always so hard on myself.
My serve is my biggest weapon.
It is definitely an advantage to have someone on tour with you for company.
I feel confident, especially about beating good players.
I don't put myself under huge pressure because if I don't play well at one grand slam, I know there's another one just a couple of months away.
Every year, I have a tournament in Czech Republic, so there are a lot of things I'm trying to do. Sometimes the money goes towards children; sometimes it's for wheelchair tennis players. I try to change it so everybody gets something.
Obviously it's very hard for everybody to be successful in the Grand Slams, so that's why some of the players, they lose, and they should not lose.
The main thing for me was when I won my first title in Kuala Lumpur. That was the biggest step that I made. I made the Top 100, and I've stayed there ever since.
Me, I don't want to put the pressure on myself.
I'm not studious at all. I'm really far from that. I have been better at everything else. I find school terribly tiresome and boring.
To beat Serena, she's world No. 1, so it's always tough to beat someone like this. She's never giving up. Even if she's losing, not playing her best, it's always tough to beat girls like this.
It's not great to look up and your sister is down 3-0. But you have to look; it's my sister.
My movement actually is the worst part of the game but still improving.
My serve - it's really important for me.
Our dad used to take us fishing, and I still love it.
You can see, even the best players, they can lose in the first round.
Sometimes players can have some ups-and-downs after they have done well and then lose a few matches in a row.
It's not only about a game and tennis, but it's more about the mental things sometimes.
It's just special to have a twin sister on the Tour.
Obviously, to win title, go in Grand Slam semi-final, is always super positive and good.
Those are the titles you play for, so I'd like to have a Grand Slam title in my life, and I'll do my best to do it.
When you get to a tournament, everybody wants to do well, especially against a seeded player.
I feel like my serve is a little bit better with each match.
Not seeded players, they always want to do well.
The village where my father lives is, like, 300 people.
Sometimes I play good shots, good rallies, and then there is hundreds of mistakes and not a good shot.
I know the world is mean, that there is so much suffering on the planet that none of us can imagine. I often think of those who have nothing, who have to suffer every day, so a winner, a game, set, match will never give me immense joy, only satisfaction.
Obviously I need a coach, but it's not the main thing in my team. I can play good even without a coach.
If I serve good and play aggressive from the baseline, I can beat everyone.
I have a different game than most of the players.
My father used to play ice hockey, though not at a high level, and my mother wasn't involved in sport at all, but they were keen that we played some sort of sport. They chose tennis because they thought it was a good sport for girls to play.
It's tough to say this, but sometimes it's better if you are losing because then you don't expect anything.
I just want to play well, and I want to win.
That's why I won: because I believed I had a chance.
If you believe in yourself, you can beat anyone.
Brisbane is my favourite tournament... I have great memories here and always like to start the year here.
When you lose, it's always tough to see the positive things.
I don't think there is any player who has everything coming easy, you know?
Normally, my goal is to get past the first round, because that's the hardest.
Almost every Grand Slam, I'm in second week, which is pretty positive for me.
Sometimes I just put some first serve in, which, on break points, it's pretty important.