Opash asked "Was there a back story to Royce vs DeLucia?"
Jason took the Gracie Challenge and that's why he fought Royce in Royce's dojo. After that, Jason says, a friend of Rickson's taught him a lot so he'd make a good account of himself. Jason was invited to fight in UFC; everyone knew that if things went well he'd fight Royce, that was no surprise and didn't bother any of them.
There were never any hard feelings, and there's no grudge. Royce held the UFC 2 armbar long just to make sure the refs didn't miss it since he'd had trouble with other fighters.
So the backstory is that nothing bad was going on, just good stuff with fighters respecting each other.