Fresh from putting a blemish on the Colts' perfect season, the Chargers travel to Kansas City, where the Chiefs have won 17 consecutive December games.
It the second demanding game in a season-ending, three-game stretch the Chargers felt they had to sweep to keep their playoff hopes alive. They end the year by hosting the Broncos.
The Chargers, who trail the Steelers and Jaguars in the AFC wild-card race, didn't pick up any ground on those teams last weekend. But linebacker Donnie Edwards said they did gain something when knocking the Colts from their lofty perch.
"I think we gained ground in both confidence and momentum," Edwards said. "I think we feel real good right now. To beat a team that is 13-0, and beat them in their place just gives us a lot of confidence right now, and the momentum is definitely on our side."
Even if history isn't, knowing how difficult it is to escape Kansas City with a late-season win.
"It's going to be a tough game in Arrowhead Stadium; I know, I played there," said Edwards, a former Chief. "But the (RCA Dome) is a very difficult to play in as well; this was one of the loudest stadiums I've played in."
The Chargers continue to make noise, even after a 0-2 start and three losses in their first five games had many writing them off. And it's still no guarantee they will see the postseason, even if they beat the Chiefs and the Broncos.
But they'll let others figure out all the playoff scenarios. "We have to win, and that is our approach," said running back LaDainian Tomlinson, who left Sunday's game early after aggravating his bruised ribs. "We control what we do. We all know if Pittsburgh and Jacksonville continue to win, we are left out in the cold. We could end up 11-5 and no playoffs. Tough AFC, huh?"
But the Chargers' plight would have been tougher without a win over the Colts.
"Especially for momentum," said Tomlinson, who didn't think his setback was serious. "It was a hue win; you don't want to have a loss going into Kansas City because it's tough to go into Arrowhead and play in December."