That's easy....

The injury thing - - Put AD in and then don't give him the ball.... 22 eyeballs would be so focused on AD they'd never know the ball was snapped.... or even if they didn't zoom in on AD they'd sure as hell spin to check out the commotion in the stands as every end zone seated fan would be stampeding to the aisles believing AD wouldn't be able to check up before reaching about row 23.