Ronnie O'Sullivan will carry a three-frame advantage into the final session of the world snooker championship against fellow Englishman Ali Carter, at the Crucible Theatre in Sheffield.
The 36 year old O'Sullivan, in what he's said will be his last match before retirement, leads ten frames to seven and needs eight more frames for a fourth world title.
Carter's never beaten O'Sullivan in the eleven time they've played each other in ranking tournaments.
