Mark Williams knocks out his nemesis Ronnie O’Sullivan in Masters thriller

Williams fights back from 3-0 down to win quarter-final 6-5.

FACE OFF: Ronnie O'Sullivan congratulates Mark Williams after their match on day five of the Cazoo Masters at Alexandra Palace, London. Picture date: Thursday January 12, 2023.

Mark Williams ended an eight-year wait for victory over Ronnie O’Sullivan by storming back from a three-frame deficit to win 6-5 and reach the semi-finals of the Masters.

Williams’s hopes of beating the seven-time Masters champion seemed distant as O’Sullivan surged into a 3-0 lead at Alexandra Palace.