Luis Suarez banned but what are football’s deadliest sins?

Fighting and biting are bad but never use an elbow. Headbutting is for cowards. No-one pushes the referee. And whatever you do, do not spit at an opponent. The four-month ban handed out to Uruguay striker Luis Suarez for his latest bite, this time on Italy’s Giorgio Chiellini, has again highlighted the boundaries of what behaviour is acceptable on a football field. BBC Sport – with the help of pundit Steve Claridge, who played for 22 different clubs in a 29-year professional career – examines just how far you can go before you commit the sport’s ultimate sin. Brawling Verdict: ‘Not a big deal’ The term ‘fight’ in football should be used loosely. Very rarely do…