But the only reason there was a rematch clause in the first place is because he was putting his title at risk. He can only win back his title by beating Fury in a rematch, he can't restore his 0 so if Fury doesn't have his title anymore he doesn't need to fight Fury. I don't think I've ever heard of a rematch clause being present in the contract for a non-title fight as what would be the point?There was a rematch clause in the contract with Fury. Title or no title.
Has nothing to do with WBC. It is not a WBC ruling that demands a 3rd fight. It is the contract Fury signed to give Wilder a rematch in the event of a loss.