ALAMEDA, Calif. — The Oakland Raiders got back to doing what made them successful during a three-game winning streak and got back into the AFC West playoff race as well.

In order to stay in contention the Raiders need to prove that the two lopsided losses in the middle of this recent stretch were an aberration and that the four wins surrounding them are evidence of what kind of team they really are.

The running game got back on track with 251 yards, Jason Campbell played a mistake-free game in his return as starting quarterback and the defense held high-powered San Diego to one touchdown in a 28-13 victory over the Chargers on Sunday.

The Raiders (6-6) still trail Kansas City (8-4) by two games in the AFC West and may not be able to afford any more losses if they want to have a realistic chance to make it to the playoffs.