The Bills are pretty banged up heading into their matchup at Tennessee Sunday against the Titans. Quarterback Josh Allen heads a long list of Bills who are questionable for the game. Allen was a limited participant in practice today, but remains in concussion protocol, along with fullback Patrick Dimarco. Running back Devin Singletary, who had a hamstring issue, was limited in practice. And right tackle Ty Nsekhe missed practice with an ankle injury.