Underdogs that I think could win this week:
Raiders +13 (Saving Manning for the game after. Since he is injured.)
Lions +10 (Lions were tied against the Bears, they performed well. Lions are the strongest out of the worst teams.)
Bengals +9 (Ravens defense is down, I would not bet on this.)
Chiefs +9 (Cowboys is still a good overall team, I would not bet on this.)
I'm sure that the Eagles and Vikings can cover the spread against thier opponents.