John Mcenroe

McEnroe was right on that call? You cannot be serious!

It ranks as one of the most memorable – and imitated – moments in sporting history. Back in 1981, a young John McEnroe, sporting a headband and frizzy hair, was so furious at the Wimbledon umpire Edward James's refusal to rule his serve in that he uttered the immortal line "you cannot be serious" before subjecting, or perhaps treating, the centre court crowd to a tirade of ill-tempered invective.