Final: Buffalo Bills 23, Baltimore Ravens 20
The defending champions were thoroughly outplayed in every phase by the Buffalo Bills. The Ravens still had their chances to leave Week 4 with a win, but the offense was abysmal and couldn't capitalize on anything the defense gave them.
This was a great performance by the Bills and the Ravens have serious problems on offense. Joe Flacco threw as many interceptions as Ray Rice had carries, and the running and passing games were completely dysfunctional.