The Chiefs have had their backs against the wall enough this season.
They certainly weren't going to just quit.
With first down at the Kansas City 15, Rivers called for the snap -- and the ball never got into his hands. It squirted loose on the field, bounced under a scrum, and finally emerged in the hands of Chiefs linebacker Andy Studebaker, who was running to the sideline in joy.
The game headed for overtime, and Ryan Succop eventually knocked through a 30-yard field goal to give the Chiefs a dramatic 23-20 victory over the Chargers on Monday night.
"Our guys were saying, 'It ain't over 'till it's over. Keep playing, and digging,'" Chiefs coach Todd Haley said. "You never know what will happen."
Kansas City (4-3) became the first team in NFL history to lose its first three games and share at least part of a division lead after four more. The Chiefs are also the first team since the Pittsburgh Steelers in 2000 to win four straight games after losing their first three.
Rivers could have prevented all of it from happening.
"I haven't had one in years," Rivers said of the fumbled snap. "It's unfortunate. I dropped it. This one is rough. You blow it on a play that never should have happened."
Kansas City had its own chance to win in regulation, but Matt Cassel overthrew his wide receiver in Chargers territory and Eric Weddle's second interception sent the game to overtime.
San Diego won the toss but failed to pick up a first down, and Cassel calmly led Kansas City down field. Succop's field goal with 5:16 remaining gave the Chiefs their fourth straight win and moved them into a tie with San Diego (4-3) and the idle Oakland Raiders (4-3) in the division.
"We were saying, 'Don't quit,'" Studebaker said. "You never quit, even if it looks ugly. If you quit every time something looks ugly, you miss an opportunity to do something special."
Boy, was this one ever ugly.
Rivers wound up throwing for 369 yards, but he also had two interceptions and one big fumble.
The teams combined for eight turnovers, matching the most in an NFL game this season. The Chargers were called for 12 penalties worth 105 yards in a gruesome game on Halloween night.
One that looked pretty in the end to Kansas City.
The Chiefs got off to an abysmal start this season, losing their first two games by a combined 89-10 and then dropping their third game on the road, at San Diego. Along the way, the Chiefs lost Pro Bowl running back Jamaal Charles, safety Eric Berry and tight end Tony Moeaki for the season.
They started moving in the right direction against division doormats Minnesota and Indianapolis, and then romped to a 28-0 win over Oakland last week.
Now, they are tied for the lead in the AFC West.