The Denver Broncos saw their 11-game winning streak end thanks to the Jacksonville Jaguars. It was a pretty brutal performance all the way around from Denver, but thanks to that 11-game winning streak, the Broncos were actually able to lose a game - they could afford a loss, if that makes sense.
Even with the Bills, Chargers, and Patriots all winning in Week 16, the 12-3 Broncos are still atop the AFC West and atop the AFC. All Denver has to do is win their final two games, and both things will be clinched.