The main point of the text is that the May 9 UFC 328 card showcases five must-see bouts spread over five distinct weight brackets, headlined by odds backing Khamzat Chimaev but not guaranteed to beat Sean Strickland, who is both durable and hard to read in their middleweight championship fight, while the remaining four divisions on the card each present tricky tactical battles making this lineup exciting and unpredictable.