The head of the California State Athletic Commission has confirmed that Big John McCarthy will be the one reffing the Dos Santos / Velasquez title fight this Saturday on FOX: It’s 99 percent still. There’s always that last minute thing that could always change something. Obviously something could happen to John or whatever the case may be but for right now, until he steps in the cage, it’s 99 percent sure. Yeah, he could always slip and bang his head on a pipe a la Kevin Randleman, or come down…