I can buy that Cain got caught or wasn't prepared or something along those lines. I'm not super interested in a rematch, but it had to be expected since Cain signed a multi-year deal.
But to have Rey Mysterio have to save him? Yes Rey is a legend, but he's 175 pounds. I don't buy for one second that he could take out Lesnar with an injured arm, and it really makes Cain look like shit.