Just thinking here. Fury and Usyk both win the rematches. You then have two undefeated fighters fighting for all the marbles. Saudi want a globally significant event and it doesn't get much better than that and the money they put up for the fight will reflect that, it'll be at least what they were going to pay for Fury Joshua at the start of the year. Better global interest than two guys from the same country, one of whom managed to get knocked out by the Michelin Man.