Tyson FuryJulian Finney/Getty ImagesThe latest entry in combat sports’ crossover era could, nay, would be the biggest.Heavyweight champion Tyson Fury dispatched Dillian Whyte in London last Saturday in his ostensible retirement fight. But in this case, retirement might mean more of an extended vacation, one that doesn’t see Fury get out of bed for less than $40 million. Boxing fans are holding out hope for a heavyweight unification bout between Fury and the winner of a rematch between Anthony Joshua and Oleksandr Usyk, which hasn’t been officially announced yet but is currently targeted for June.