"I don't believe in curses,” Sherman said. “I believe in God."
Strong answer! After all, what can you really say? You can't act like you are scared of the Madden curse. And Calvin Johnson did basically debunked it in Madden 13 with impressive performances bookending his cover appearance. (Barry Sanders was on the cover of last year's Madden 25.)
Newton's in the clear now (again; he finished behind Megatron two years ago, too) and while Sherman might not be worried about the curse, there's a good chance it could "get" him, if only because of how difficult it is to repeat as Super Bowl champion.