Minnesota running back Adrian Peterson rushed for 212 yards and a touchdown to lead the Vikings to a 36-22 rout of the Rams in St. Louis yesterday.  With 1,812 rushing yards on the season, Peterson is now just 293 yards shy of Eric Dickerson’s NFL single-season record of 2,105 yards set back in 1984 with the Los Angeles Rams.  Christian Ponder threw for 131 yards and had a rushing TD for the Vikings, who are still in the thick of the NFC Wild Card race at 8-and-6.  Everson Griffen had a 29-yard interception return for a touchdown in the victory.  Sam Bradford finished 35-of-55 for 377 yards with three TDs and one interception for the Rams, who had their three-game winning streak snapped and fell to 6-7-and-1.  Steven Jackson had 13 carries for 73 yards in defeat.  The Vikes are at Houston next weekend.