Haye-Chisora could KO big-time boxing

Every sport encounters, at some point, a low watermark of behaviour — in or out of the playing arena — that ensures things will never be quite the same again.

Some watersheds are tragic; the Heysel disaster focused minds and laws on ridding English football of its hooligan problem. Though more tragedy was needed — Hillsborough — before people realised treating fans like animals wasn’t a solution.

The Tour de France of 2007 was another cul de sac that opened into a roundabout. So breathtaking was the scale of pharmaceutical skullduggery on display, the sport couldn’t simply stick another plaster over the needle marks, or the last sponsor would soon have turned out the lights.