The last time Vikings running back Adrian Peterson battled the Bears at Solider Field he ran wild for 224 yards on twenty carries. "I really can't explain," Peterson says looking back on the game. "We just did a great job on offense executing. Those guys did a great job making blocks. It led to some big plays." Peterson added three touchdowns in Week Six of the 2007 season at Chicago. Three weeks later, he ran for 296 yards against the Chargers at home. This season the Bears are among the best at stopping the run. They have allowed just 74.3 yards per game in 2008, after letting the opposing team rack up an average of 122.9 yards last season.