Adrian Lewis Peterson (born March 21, 1985) is an American football running back for the Minnesota Vikings of the National Football League (NFL). He was drafted by the Vikings seventh overall in the 2007 NFL Draft. He played college football at Oklahoma. Peterson set the NCAA freshman rushing record with 1,925 yards as a true freshman during the 2004 season. As a unanimous first-team All-American, he became the first freshman to finish as the runner-up in the Heisman Trophy balloting. Peterson finished his college football career as the Sooners' third all-time leading rusher.