The organization American Atheists has placed a billboard ad across from MetLife Stadium in Rutherford, NJ, where Super Bowl XLVIII will take place this Sunday between the Denver Broncos and the Seattle Seahawks. Aimed at sports fans who see the supernatural at play on the field, the ad claims, “A ‘Hail Mary’ only works in football.” David Silverman, president of American Atheists, said the ad was at least in part a reaction to PRRI’s recent survey that found half of Americans reporting a belief that the supernatural was at play in sporting events.