
Mark Williams of Wales competes during the semifinal match against Hossein Vafaei Ayouri of Iran at the 2017 World Snooker China Open Tournament in Beijing, capital of China, April 1, 2017. Mark Williams won 6-1. (Xinhua/Zhang Chenlin)

Mark Williams of Wales competes during the semifinal match against Hossein Vafaei Ayouri of Iran at the 2017 World Snooker China Open Tournament in Beijing, capital of China, April 1, 2017. Mark Williams won 6-1. (Xinhua/Zhang Chenlin)