The clear winner here was Alvarez. In any other sport, he would be diminished by his designation as a drug cheat. Only this isn’t any other sport. The cancellation of his lucrative rematch with Golovkin turned out to be a postponement, and Alvarez will collect the larger paycheck. And with Alvarez enrolling in a voluntary drug-testing program last month, a victory here will likely erase any stain associated with his name.