The 1972 Miami Dolphins can celebrate, because there again won't be an NFL team to go undefeated all the way through the Super Bowl this season.
On Monday night, the San Francisco 49ers suffered their first loss of the season, falling to the Seattle Seahawks in overtime 27-24. Now, the 49ers join the New England Patriots, who are also 8-1, as the only one-loss teams in the NFL.
But there are a lot of other strong teams in the league this season, and many of them will be looking to notch another win in Week 11.