Wales’ Mark Williams reacts after potting the cue ball by mistake on day two of his World Championship Snooker final against China’s Zhao Xintong during the afternoon session at The Crucible in Sheffield, northern England on May 5, 2025. (Photo by Oli SCARFF / AFP) (Photo by OLI SCARFF/AFP via Getty Images)

Zhao Xintong dominated Mark Williams in the opening session of the world snooker championship final on Sunday, running up a 7-1 lead in his bid to become the first Chinese winner of the sport's biggest prize.