For close to a hundred years, the biff has been part and parcel of rugby league. And it was condoned for most of that time. As rough play like stiff arms, high tackles, spear tackles, facials and stomping were weeded out of the game, the punch remained. As recently as the 1980s league bosses would say there was nothing fans liked to see more than two forwards trading blows. But the biff has all but disappeared in recent years, when the league...