Will the Super Bowl underdog strike again?

The Pittsburgh Steelers are a 2 ½-point underdog to the Green Bay Packers in Sunday’s betting on Superbowl XLV action.
There are many people who think that spread should be reversed and they all don’t reside in the greater Pittsburgh area. However, it might be a good thing to be an underdog given the recent Super Bowl history.
The underdog is 7-2 ATS in the last nine Super…