San Diego Chargers quarterback Philip Rivers started in Sunday's AFC Championship Game against the New England Patriots. Tight end Antonio Gates, who is battling a toe injury, entered on the game's second play.
Rivers was on the field about two hours before kickoff, warming up for about five minutes before returning to the locker room.
Rivers returned to the practice field for the first time on Friday, handling about one-third of the snaps. He sprained his right knee in San Diego's 28-24 win over Indianapolis in the divisional round.
"I think honestly, given the magnitude of the game and given the situation, if I'm out there as I plan to be for the first snap and throughout the game, it won't have an effect at all," Rivers said on Friday.
Rivers was officially listed as doubtful on Friday's injury report and was considered a game-time decision by head coach Norv Turner.
Gates injured his toe against Tennessee in the first round of the playoffs. Gates did not start against the Colts last week, but was able to play.
The Chargers inactives are kicker Dave Rayner, cornerbacks Cletis Gordon and Paul Oliver, linebacker Anthony Waters, receiver Malcom Floyd, tight end Scott Chandler and defensive tackle Brandon McKinney.
The Patriots deactivated receiver Chad Jackson, defensive backs Mel Mitchell and Antwain Spann, offensive tackle Wesley Britt, guard Billy Yates, receiver Troy Brown and defensive tackle Le Kevin Smith.