The Cleveland Browns are on the cusp of making NFL history.
With a loss in their season finale, they would become just the second 0-16 team since the schedule was expanded to 16 games in 1978 and just the fourth winless team in league history.
NFL Nation reporters identified the worst seasons ever for all 32 teams, making their selections based on a number of factors -- from overall record to how many points a team would be expected to lose by when playing a league-average opponent, and more.
AFC EAST
Buffalo Bills
Worst season: 1971 | Record: 1-13
Contemporary reporters familiar believe the 1971 Bills are the worst in franchise history.