Minnesota Vikings quarterback Teddy Bridgewater throws during the first half of a preseason NFL football game against the Oakland Raiders, Saturday, Aug. 22, 2015, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings quarterback Teddy Bridgewater is rushed by Oakland Raiders defensive end Denico Autry (96) during the first half of a preseason NFL football game, Saturday, Aug. 22, 2015, in Minneapolis. (AP Photo/Jim Mone)

Oakland Raiders quarterback Derek Carr looks downfield during the first half of a preseason NFL football game against the Minnesota Vikings, Saturday, Aug. 22, 2015, in Minneapolis. (AP Photo/Andy King)

Oakland Raiders wide receiver Seth Roberts (10) is stopped by Minnesota Vikings inside linebacker Eric Kendricks (54) during the first half of a preseason NFL football game, Saturday, Aug. 22, 2015, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings wide receiver Charles Johnson catches a 10-yard pass for a touchdown defended by Oakland Raiders cornerback D.J. Hayden during the first half of a preseason NFL football game, Saturday, Aug. 22, 2015, in Minneapolis. (AP Photo/Jim Mone)

Oakland Raiders quarterback Christian Ponder (9) talks with Minnesota Vikings quarterback Teddy Bridgewater after a preseason NFL football game, Saturday, Aug. 22, 2015, in Minneapolis. The Vikings defeated the Raiders 20-12. (AP Photo/Jim Mone)