From: Rototimes.com

Ravens linebacker Antwan Barnes would be the one to step in if Terrell Suggs is unable to suit up in the AFC Championship game, but Barnes is dealing with his own injury, and could miss the game as well, reports the Sporting News Today. Barnes has a pectoral muscle malady which has caused him to miss two games. That would leave the onus on rookie Jameel McClain to start at linebacker.