UFC 61: Bitter Rivals

Though headlined by Tim Sylvia vs Andrei Arlovski for the Heavyweight Championship, the primary draw was Tito Ortiz vs Ken Shamrock, which drove record interest. The event set a new UFC pay per view buyrate at roughly 775,000 buys and generated over $30 million in PPV revenue. It also included the public announcement of a planned Chuck Liddell vs Wanderlei Silva matchup, a cross-promotion dream fight that ultimately never materialized until 2007.