Andy Dalton engineered a go-ahead scoring drive capped by a 6-yard TD run with 4:11 remaining Sunday, carrying the Cincinnati Bengals over San Diego 20-13. Dalton led the Bengals on a 14-play, 55-yard drive down the stretch and made the decisive scoring plunge after completing 25-of-39 passes for 211 yards and a touchdown. BenJarvus Green-Ellis picked up 118 yards on 25 carries for the Bengals (7-5), who remained the AFC post-season picture with their fourth straight win. The Chargers\' Philip Rivers completed 26-of-48 passes for 280 yards but lost a fumble in the fourth quarter and tossed an interception in the end zone in the final minute. Reeling San Diego (4-8) dropped its fourth straight.