FILE - Washington Commanders running back Brian Robinson, second from left, wears a Guardian cap during practice at the team's NFL football training facility July 27, 2022 in Ashburn, Va. The NFL says will allow players to wear protective soft-shell helmet covers known as Guardian caps during games next season if they choose. The league is also expanding the use of the devices during practices. Defensive backs and receivers have joined the position groups now required to wear the caps during all contact practices. (AP Photo/Alex Brandon, File)