Ronnie O'Sullivan claimed some referees have "got it in for me" after his bid to capture a record eighth world snooker title was crushed by Stuart Bingham in the quarterfinals.

Ronnie O'Sullivan will launch his bid for an eighth World Championship triumph with a new approach after claiming he doesn't "know much" about snooker.

Ronnie O'Sullivan has warned he will quit snooker if he is restricted from playing non-tour events in China, saying his career is at a "crossroads".