Maybe I just missed the explanation on this...What is with the green dot on the back of the NFL quarterback's helmet? It is easy to spot if you watch the TV coverage. In most cases it is just above the bottom of the rear of the QB's helmet. All QBs seem to have them, even the back-ups and third stringers, and I haven't seen any other position players (running backs, receivers) with them.
My guess is the dot is supposed to show up on video for some reason. But I have yet to see a broadcast where they have explained it.
Can anyone help me with this?