The Denver Broncos could not win their 12th game in a row and lost by two touchdowns to the Jacksonville Jaguars, a team that is obviously very good. Denver now drops to 12-3 on the season but are still in first place in the AFC and in the AFC West.
And with two more wins, getting to 14-3, Denver would win the AFC West and would clinch the first overall seed in the playoffs. The Broncos still control their own destiny, so if there was ever a loss that they could have 'afforded,' it was this one.