Marcus Gilbert (American football) - Wikipedia
Official (gridiron football) - Wikipedia
American football - Wikipedia
Canadian football - Wikipedia
Guard (gridiron football) - Wikipedia
Adam Jones (American football) - Wikipedia
Detroit Lions - Wikipedia
Donald Payne (American football) - Wikipedia
American football rules - Wikipedia
Ball (gridiron football) - Wikipedia
Canadian football - Wikipedia
Josh Johnson's Wikipedia page includes laundry list of professional football teams
Micah Johnson (gridiron football) - Wikipedia
Indoor American football - Wikipedia