
Stefanos Tsitsipas of Greece celebrates victory after the quarterfinal match of men's singles against Alexander Zverev of Germany at the 2018 Rogers Cup in Toronto, Canada, Aug. 10, 2018. Stefanos Tsitsipas of Greece won 2-1. (Xinhua/Zou Zheng)?

Stefanos Tsitsipas of Greece celebrates victory after the quarterfinal match of men's singles against Alexander Zverev of Germany at the 2018 Rogers Cup in Toronto, Canada, Aug. 10, 2018. Stefanos Tsitsipas of Greece won 2-1. (Xinhua/Zou Zheng)?