Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078200
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078199
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078198
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078197
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078196
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078195
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078194
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078193
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078192
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078191
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078190
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078189
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078188
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078187
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078186
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078185
Greece's Stefanos Tsitsipas celebrates his victory at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078184
Austria's Dominic Thiem reacts during the final men's singles tennis match against Greece's Stefanos Tsitsipas at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078120
Greece's Stefanos Tsitsipas returns a shot during the final men's singles tennis match against Austria's Dominic Thiem at the ATP World Tour Finals tournament in London, Britain.17.11.2019#6078119
Austria's Dominic Thiem returns a shot during the final men's singles tennis match against Greece's Stefanos Tsitsipas at the ATP World Tour Finals tournament in London, Britain.17.11.2019#6078118
Austria's Dominic Thiem returns a shot during the final men's singles tennis match against Greece's Stefanos Tsitsipas at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078117
Greece's Stefanos Tsitsipas returns a shot during the final men's singles tennis match against Austria's Dominic Thiem at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078091
Austria's Dominic Thiem reacts during the final men's singles tennis match against Greece's Stefanos Tsitsipas at the ATP World Tour Finals tournament in London, Britain.17.11.2019#6078089
Austria's Dominic Thiem returns a shot during the final men's singles tennis match against Greece's Stefanos Tsitsipas at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078087
Austria's Dominic Thiem reacts during the final men's singles tennis match against Greece's Stefanos Tsitsipas at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078086
Greece's Stefanos Tsitsipas reacts during the final men's singles tennis match against Austria's Dominic Thiem at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078084
Austria's Dominic Thiem returns a shot during the final men's singles tennis match against Greece's Stefanos Tsitsipas at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078074
Greece's Stefanos Tsitsipas returns a shot during the final men's singles tennis match against Austria's Dominic Thiem at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078073
Greece's Stefanos Tsitsipas, right, and Austria's Dominic Thiem, left, pose for a photo during the semi final men's singles tennis match at the ATP World Tour Finals tournament in London, Britain. 17.11.2019#6078072