The Chargers, who had trailed the whole game, were on the verge of winning it in regulation when they marched to the Kansas City 15. With first-and-10 and 48 seconds left on the clock, Philip Rivers fumbled the snap and the Chiefs’ Andy Studebaker clawed under the pile and pulled the ball out.
Kansas City moved down the field for its own chance to win the game, but Matt Cassel badly overthrew his intended receiver and Eric Weddle’s second interception sent the game to overtime.
After Cassel hit Steve Breaston for 17 yards on third-and-14 to keep the drive alive, Succop booted his third field goal of the game to forge a three-way tie between Kansas City, San Diego and the Oakland Raiders atop the AFC West.
The Chiefs (4-3) are the first team to win four consecutive games after losing its first three of the season since the 2000 Pittsburgh Steelers.
San Diego (4-3), which trailed 13-3 at halftime after having two drives halted by turnovers deep in Kansas City territory, got within one point as Nick Novak booted three of his four field goals in the third quarter.
Jackie Battle’s 1-yard touchdown run with 12 minutes remaining in the fourth put the Chiefs ahead 20-12. But Curtis Brinkley rushed for a 2-yard score less than five minutes later and caught the two-point conversion to forge a tie.
Rivers completed 26 of 41 passes for 369 yards but threw two interceptions.