Nick Novak hit the go-ahead field goal for San Diego with 5:30 left in overtime to beat Kansas City (11-5) 27-24.
Head coach Andy Reid sat 11 starters on defense and nine on offense with the Chiefs playoff outlook already set with the fifth seed in the AFC. The team found out after the game that they will play the Colts for the second time in three weeks in the first round of the postseason -- this time in Indianapolis.
Former Missouri Tiger Chase Daniel made his first career start, and led Kansas City to a 24-14 second half lead. Daniel finished the game 21-30 for 200 yards, one touchdown and no interceptions.
Rookie running back Knile Davis, playing in place of Pro Bowl running back Jamaal Charles, rushed for 81 yards and two touchdowns on 27 carries.
Leading 24-14 in the fourth quarter, Phillip Rivers threw a touchdown pass to Eddie Royal, and Novak tied the game with a 22-yard field goal with 3:21 left.
Daniel marched the Chiefs down the field going 3-3 for 49 yards on the final drive of regulation, but Ryan Succop missed the game-winning 41-yard field goal wide right sending the game to overtime.
San Diego needed the win to earn a playoff berth, and keep the Steelers out of the postseason. The Chargers will play at San Diego next Sunday.