Dalton's 6-yard TD lifts Bengals over Bolts

SAN DIEGO (AP) -- Andy Dalton scrambled up the middle for a 6-yard touchdown with 4:11 left for the go-ahead score and the Cincinnati Bengals won their fourth straight game, 20-13 over the staggering San Diego Chargers on Sunday.

On second-and-goal, Dalton pump-faked right and then ran up the middle, dived for the end zone and got the ball across.

The Bengals (7-5) remained tied with Pittsburgh in the race for the AFC's second wild-card berth.

The Chargers (4-8) lost their fourth straight game and for the seventh time in eight games, and remain only mathematically alive in the wild-card chase.

Denver won the AFC West with a 31-23 victory against Tampa Bay.

Philip Rivers had two turnovers in the final 3:54.

Defensive end Carlos Dunlap sacked Rivers, forced a fumble and recovered at the 13 to set up Mike Nugent's 24-yard field goal for a 20-13 lead.

Rivers was then intercepted in the end zone by Reggie Nelson on fourth-and-10 from the Bengals 17 with 49 seconds left.