X brought up a great point in his post- Tyson isn't stupid and is constantly doing things to keep his name out there. Usyk/AJ winner cements his legacy, which is really what he has always been after- Chisora is the biggest name/safe tune up fight he can get. I don't blame fighters for tune up/stay busy fights, too many back-to-back super fights is unrealistic and leads to wear/tear and a shortened career. Tyson is great at promoting himself and I can't see him walking away with unfinished business with Usyk/AJ- this keeps him interesting/relevant and his name at the top of headlines until the big fight can be made. I may be too optimistic though...