Marcus Trescothick's admission that he used mint-induced saliva to keep the shine on the ball during the 2005 Ashes might give his autobiography Coming Back To Me the perfect launch, but it has left him and his Ashes-winning team open to the charge of ball tampering.Trescothick, who was England's official ball-shiner during the series admitted that he had used Murray Mints to produce a saliva which, "when applied to the ball for cleaning purposes, enabled it to keep its shine for longer an