Special decals on helmets are part of the norm in today's league, however, only a select few have a green dot. ... Why NFL teams designate players to wear unique sticker.

It's not nearly as common as the other labels, as only designated players are allowed to sport the green sticker on their helmet. However, it can still be seen every now and then on the field.

When the Green Bay Packers took the field on Thursday night for their first NFL regular-season game since the death of Bart Starr, each player carried the memory of the team’s former quarterback ...