There are no more undefeated teams left in the National Football League during the 2010-2011 season
No NFL teams went undefeated in 2009.
no team in the NFL this season is undefeated but the colts and the saints were but lost a couple of games
Currently, the Indianapolis Colts and the New Orleans Saints are undefeated at 11-0.
In the 2009 season: the Colts and the Saints. First time in NFL history two teams have been 12-0 in the same season.
The Steelers have never had an undefeated season in their NFL history.