The Underdog: For years, Peyton Manning was the model by which all quarterbacks were measured. On Sunday, he was surpassed -- perhaps for good -- by Andrew Luck in a game that will be seen as a passing of the torch from one gifted AFC passer to another. There's at least an outside chance we saw the last of Manning on Sunday. But we're just starting to see the greatness of Luck, who might own many of Manning's records before his career is through. Luck will be an underdog in Foxborough, but do you really feel safe picking against him?