About the play: The Packers must run against the Vikings -- and they should be able to. The Vikings have a small defense that is ranked 30th in the league, and they have had trouble late in the season stopping physical teams. Minnesota might be last in the league against the pass, but the Packers need to be physical.

The sweep is a big part of the Packers offense, and Dorsey Levens runs it well. He knows how to stretch the play, pick his hole and run to daylight. The Packers must move the line of scrimmage. While this play appears elementary, it can break a team's defensive will.

Keys to the pay: The key is for each offensive player to get to his man and move his man wherever it takes the defense. It is critical that each blocker get right down the middle of his block so the defensive player can't cross his face or dip underneath and make a play. The blocks must get movement. A stalemate will be a victory for the Vikings.

The tight end's block must get great control of the strong-side linebacker so Levens can choose to cut inside or keep the play outside on the perimeter. This play only works if Levens has options on where to run. The defensive goal is to force Levens to stretch all the way to the sideline and limit his room.

Two huge keys are the center's block on the middle linebacker, who will be running to get to Levens, and the back-side cut-off block by the left tackle on the weak-side linebacker. He must shield the weak-side linebacker so Levens can cut all the way back. If the Packers can run, the Vikings may be playing catch-up. The winner stays in the race, and the loser watches the playoffs on TV.