Chargers quarterback Philip Rivers is currently questionable for Sunday's AFC Championship game against the Patriots at Gillette Stadium.

Rivers, who was already wearing a brace on his left knee from an injury suffered last month, sprained the medial collateral ligament in his right knee Sunday when he landed awkwardly after completing a screen pass to Darren Sproles against the Colts.

"Right now, it's probably questionable in terms of playing in the game, but he's got a chance," Turner said Monday. "That will be a day-to-day thing and we'll monitor it as the week goes on."

Running back LaDainian Tomlinson, who also injured a knee in Indianapolis, has expressed confidence that he'll be able to face the Pats.

Backup Billy Volek finished the game for the Chargers after Rivers' injury, and led the team to its game-winning touchdown.

Turner said he's "concerned...real concerned" about the injuries, particularly to Rivers.