Keenan Allens runs the ball for a successful completion in the first quarter during the Week 13 matchup against the Pittsburgh Steelers.

Philip Rivers sets up the play on first down during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen receives a successful completion pass during the Week 13 matchup against the Pittsburgh Steelers.

Derwin James tackles Steelers receiving player during the Week 13 matchup against the Pittsburgh Steelers.

Melvin Ingram lines up for a defensive play during the Week 13 matchup against the Pittsburgh Steelers.

Isaac Rochell reaching above the line to block a field goal during the Week 13 matchup against the Pittsburgh Steelers.

Philip Rivers throws a pass during the Week 13 matchup against the Pittsburgh Steelers.

Travis Benjamin catches a pass by Philip Rivers during the Week 13 matchup against the Pittsburgh Steelers.

Travis Benjamin running the ball after a successful completion during the Week 13 matchup against the Pittsburgh Steelers.

Travis Benjamin celebrates after scoring a touchdown in the first half during the Week 13 matchup against the Pittsburgh Steelers.

Travis Benjamin and Philip Rivers celebrating after the touchdown drive during the Week 13 matchup against the Pittsburgh Steelers.

Derwin James picks off Ben Roethlisberger during the Week 13 matchup against the Pittsburgh Steelers.

Derwin James makes a run after intercepting the ball during the Week 13 matchup against the Pittsburgh Steelers.

Derwin James celebrating after the play during the Week 13 matchup against the Pittsburgh Steelers.

Williams attempting to catch the ball during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen running the ball during the Week 13 matchup against the Pittsburgh Steelers.

Chargers stop James Connor during the Week 13 matchup against the Pittsburgh Steelers.

Damion Square attempting to block a field goal during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen taking hold of the ball after a near miss interception from the Steelers for a touchdown during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen making his first touchdown of the game during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen celebrates with Mike Pouncey after scoring a touchdown against the Pittsburgh Steelers in the second half during the Week 13 matchup against the Pittsburgh Steelers.

Kyle Emanuel tackling Antonio Borwn during the Week 13 matchup against the Pittsburgh Steelers.

Chargers defensive line tackles Antonio Brown during the Week 13 matchup against the Pittsburgh Steelers.

Melvin Ingram goes head to head with Ramon Foster during the Week 13 matchup against the Pittsburgh Steelers.

Desmond King recovering the punt return during the Week 13 matchup against the Pittsburgh Steelers.

Desmond King runs upfield with blocking assist from Derwin James during the Week 13 matchup against the Pittsburgh Steelers.

Desmond King scores a touchdown after successful runt return during the Week 13 matchup against the Pittsburgh Steelers.

Desmond King and the Bolts defense gather to celebrate touchdown drive during the Week 13 matchup against the Pittsburgh Steelers.

Philip Rivers sets up to receive the snap from Mike Pouncey during the Week 13 matchup against the Pittsburgh Steelers.

Antonio Gates runs the ball after successful pass from Philip Rivers during the Week 13 matchup against the Pittsburgh Steelers.

Antonio Gates after scoring a touchdown during the Week 13 matchup against the Pittsburgh Steelers.

Tyrell Williams and Antonio Gates celebrate touchdown drive during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen runs the ball into the end zone for 2-point conversion during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen celebrates after scoring drive during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen and Mike Pouncey celebrating during the Week 13 matchup against the Pittsburgh Steelers.

Philip Rivers celebrating after a successful completion during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen receiving the ball during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen running the ball during the Week 13 matchup against the Pittsburgh Steelers.

Jatavis Brown tackling Antonio Brown during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jones moving in to sack Ben Roethlisberger during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jones and Joey Bose moving in to sack Ben Roethlisberger during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jones and Joey Bosa sack Ben Roethlisberger during the Week 13 matchup against the Pittsburgh Steelers.

Joey Bosa celebrates after his sack during the Week 13 matchup against the Pittsburgh Steelers.

Adrain Phillips, Tre'Von Johnson, and Geremy Davis during the Week 13 matchup against the Pittsburgh Steelers.

Adrian Phillips tackling Antonio Brown during the Week 13 matchup against the Pittsburgh Steelers.

Adrian Phillips tacking Vance McDonald during the Week 13 matchup against the Pittsburgh Steelers.

Michael Davis tackling JuJu Smith-Schuster during the Week 13 matchup against the Pittsburgh Steelers.

Jatavis Brown and Rayshawn Jenkins tackling Jaylen Samuels during the Week 13 matchup against the Pittsburgh Steelers.

Austin Ekeler running the ball during the Week 13 matchup against the Pittsburgh Steelers.

Austin Ekeler running the ball during the Week 13 matchup against the Pittsburgh Steelers.

Philip Rivers during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jackson breaking through the defensive line during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jackson avoiding a tackle by Terrell Edmunds during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jackson running towards the end zone during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jackson leaps into the end zone during the Week 13 matchup against the Pittsburgh Steelers.

Justin Jackson is lifted into the air by teammate after scoring touchdown drive during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen with the ball during the Week 13 matchup against the Pittsburgh Steelers.

Mike Pouncey protects Philip Rivers during the Week 13 matchup against the Pittsburgh Steelers.

Keenan Allen and teammate during the Week 13 matchup against the Pittsburgh Steelers.

Michael Badgley kicking the game winning field goal during the Week 13 matchup against the Pittsburgh Steelers.

Michael Badgley and Donnie Jones celebrate game winning field goal during the Week 13 matchup against the Pittsburgh Steelers.

Michael Badgley celebrates his game winning field goal kick during the Week 13 matchup against the Pittsburgh Steelers.