LANDOVER, Md. (AP) - Defensive end Chris Clemons, the Seattle Seahawks' best pass rusher, left Sunday's playoff game against the Washington Redskins with a left knee injury.

Clemens, who led Seattle with 11 1/2 sacks in the regular season, was injured in the third quarter. The team announced his return was doubtful.

Pierre Garcon, the Redskins No. 1 receiver, injured his left shoulder in the third quarter but returned to the game.

In the first quarter, Redskins left guard Kory Lichtensteiger re-injured his sprained left ankle. He was active for the game despite missing practice all week, having sprained his ankle in the third quarter of the previous week's NFC East-clinching win over the Dallas Cowboys.

Rookie third-round pick Josh LeRibeus entered the game for Lichtensteiger.

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