GLENDALE, Ariz. -- Seattle Seahawks cornerback Richard Sherman left Thursday night's game against the Arizona Cardinals in the third quarter with a heel injury.
His return was announced as doubtful.
Sherman was on Seattle's injury report last week with an Achilles. He was listed as a non-participant all three days, though the team held walk-throughs and participation was an estimation of what would have occurred in a normal practice.
Sherman has never missed a game since entering the league in 2011.
Injuries have piled up in this game for the Seahawks.