At a certain level, the Vikings may be hoping Ponder can’t handle it. If that happens, they can then see if Matt Cassel can handle it.
A Ponder injury gives the Vikings the best way to test drive Cassel.
The added benefit of playing Cassel this weekend will be that, if Cassel stinks, the Vikings can declare that they have “no intent” to trade for Buccaneers quarterback Josh Freeman.
Source: Mike Florio, Pro Football Talk Viking's Cassel May Have Chance To Prove Himself Sunday by Kate Reiter