Before people start asking why Anderson Silva is fighting a bum like Stephan Bonnar, the main event was supposed to Erik Koch, a talented featherweight, against the gawd Jose Aldo. Koch had to drop out because of injury and got replaced with former lightweight champ Frankie Edgar. Then Aldo got in a motorcycle accident and had to pull out. Then 30 days ago Silva stepped up and said he'd fight a low-level 205er in a non-title fight to save the card. That's how we got Silva-Bonnar.
Rampage was supposed to be on this card to fight Teixeira, but he got hurt too. And it's psycho.