The biggest upset was Bills vs. Patriots. Not only was it an upset, but it was also an amazing contest that ended in a last second game-winning winning field goal by the Bills. The final score was 34-31.
Despite Wes Welker's ridiculous game, the Patriots still lost by three points. Bills running back Fred Jackson had a great catch to set up the game-wining field goal.
I was shocked when I heard that the Bills beat the undefeated New England Patriots. I was also very happy because the Patriots and the Jets are rivals.