“Ronnie Ou0027Sullivan has accused referee Desislava Bozhilova of making an error in his World Snooker Championship quarter-final against Stuart Bingham. The re-spotting of the black in the 12th frame of the clash caused plenty of controversy. Ou0027Sullivan asked for the ball to be checked on numerous occasions, and said: “I just wanted to prove that sheu0027d got it wrong.” The match is tied at 8-8.”