Selective focus of tennis player looking at tennis ball on table isolated on black - Stock Photo & Image

Mark Allen of Northern Ireland plays a shot to Fergal O'Brien of Ireland in their second round match during the 2017 Shanghai Masters snooker tournament in Shanghai, China, 15 November 2017

John Higgins of Scotland considers a shot to Jack Lisowski of England in their first round match during the 2017 Dafabet Scottish Open snooker tournament in Glasgow, UK, 11 December 2017

Mark Selby of England plays a shot to Gary Wilson of England in their quarterfinal match during the 2019 World Snooker International Championship in Daqing city, northeast China's Heilongjiang province, 8 August 2019.

Mark Selby of England plays a shot to Alan McManus of Scotland in their second round match during the 2017 Shanghai Masters snooker tournament in Shanghai, China, 15 November 2017

Ricky Walden of England plays a shot against Shaun Murphy of England during the third round of 2014 World Snooker China Open in Beijing, China, 3 April 2014

--File--Shi Yuzhu, the founder of Shanghai-based Giant Interactive Group, is pictured during a press conference in Beijing, China, 6 August 2010