Video PlayerClose
Stefanos Tsitsipas of Greece celebrates with the trophy after the singles final with Dominic Thiem of Austria at the Nitto ATP World Tour Finals 2019 in London, Britain on Nov. 17, 2019. (Xinhua/Han Yan)
Stefanos Tsitsipas of Greece celebrates with the trophy after the singles final with Dominic Thiem of Austria at the Nitto ATP World Tour Finals 2019 in London, Britain on Nov. 17, 2019. (Xinhua/Han Yan)