GB -3. Large.
The passing game will determine the winner tonight, GB passing differential is #1 in the NFL, Denver's is 15th.
GB "D" is better than you think and will harass Manning in the pocket, Denver OL is sub par.
Denver pass rush is excellent but Pack OL is better than Denver's, and Rogers is more adept at avoiding it, has Adams back for the slot, will extend some plays and hit a few long passes.
Neither team has played a tough schedule.
Manning was a great one, but not any more. Sure they can win with him but not against top competition.
Denver getting 3 at home? What does that tell you? They WANT you to take Denver.
GB will win in a surprisingly high scoring game, say, 35-40 to say 21-24.