There are now just 11 college football teams undefeated after six weeks of play.
After six weeks of college football, we're down to just 11 undefeated teams. Not all are national title contenders - but most will have a shot, so long as they continue to win out. That being said, it's important to note that no teams finished the 2015 season undefeated. Clemson was 14-0 heading into the national title game against Alabama but lost.
Which previously undefeated teams lost this week? Houston fell to Navy, effectively ending its national title hopes, while Tennessee lost a wild game to Texas A&M in double overtime. Miami also fell to Florida State after a missed extra point.