Ponder took a hit to the head late in the second quarter Sunday against Chicago during a rushed third-down throw. Ponder was pressured and knocked down by defensive end Shea McLellin and linebacker James Anderson. Ponder was slow to get up and looked a little woozy as he walked off.
Ponder took three sacks in the first half and completed just three of eight passes for 40 yards. Matt Cassel came in for the final drive of the second quarter, to a rousing cheer from the crowd. The Vikings announced Ponder's return to the game as questionable.
The Vikings again had Josh Freeman inactive.
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