Here is a crazy rumour someone made up on UG: Tito Ortiz vs. Andrei Arlovski (heavyweight) at Affliction Trilogy. Never going to happen!
How's this: Diaz vs. Riggs will be a title fight, the FOURTH on the upcoming Strikeforce card (Carano/Santos - wermunz, Werdum/Overeem - heavyweight, Melendez/Thompson - lightweight).
Yep, vacant WW title, since Shields is disinterested. If Diaz gets past Riggs, then that division is stymied with Shields unwilling to fight his teammate.