“Ronnie Ou0027Sullivan couldnu0027t hide his frustration as he suffered a last-16 defeat to Zhang Anda in the English Open. The world No. 1 allowed movement in the crowd at the beginning of the fourth frame at the Brentwood Centre to disrupt his game, and his opponent took full advantage by completing a 4-2 win. But before the conclusion of the match, Ou0027Sullivan had already bitten his cue tip off.”