what is the green sticker mean on the back, of it seems all the quarterbacks helmets, in the NFL ?

It means that there is a radio in his helmet. Only one player on the field may have a radio.

i think it means there helmet has a tranmitter for the plays maybe

i think it means that they have speakers or w.e. in their helmets, like for the coaches to call the plays.

It never ends. They keep coming out of their caves and asking this f^%&*$( question.

the QB's have receivers to call the plays with but, holders for field goals would wear them and a lot of times they'd get transmissions to fake it and run (which they can't do) so the ref.s see the sticker so they can make them wear a different helmet .

It means that someone forgot to take the price tag off the back of the helmet, that's all.

Someone should do a count as to how many times this question has been asked. It has to be around 150 times by now.

^^^^^^ HHAHA Bryan is funny

it means that u are noticed and is the qb

you have a receiver in your helmet

its a cover for the antenna for the speakers inside of there helmet

It is a Mr. Yuck sticker. Because all of the QBs in the NFL make you sick with their high priced low end performance - Notice that Brett Farve does not have a sticker?

Radios are for wimps.