Dominic Thiem spoke about how it feels to end the year as world No. 4 just behind Roger Federer, Novak Djokovic and Rafael Nadal. The Austrian player said: "It's important now to finish the year as No. 4 because of the seedings in Australia, obviously.
But I think ATP Cup is 750 points, so there can still be some changes. But it's way nicer to go into a Grand Slam as a fourth seed than as a fifth seed because everybody knows why. With the age difference with Stefanos is funny.
I just saw a picture before that I practised with him the first time I played here 2016. He was a hitting partner here. It's an amazing story for both of us, because probably both of us, we didn't think that only three years later we were going to face each other in the finals."
On how his friendship with Stefanos Tsitsipas started, Thiem added: "That was the first time I met him, 2016 here, as a hitting partner. Of course, I saw that he's playing great, but I didn't put so much attention on it because other things to focus on.
And then he came on tour, and we played our first match last year in Doha, like two years ago almost, and there I saw and I also felt his amazing potential. Then at the end of the year already he was No. 14 or 15, and then everybody could see where his direction goes, like, only up, only in absolute world class.
Well, he really deserves it. He's a good person. He's a very good player with a very attractive style to watch, so it's good to have him."