Seattle Seahawks quarterback Geno Smith suffered a knee injury in the second half following an attempted low sack by the Green Bay defense. The

The Seahawks' playoff hopes were dealt at least one significant blow Sunday night with their loss to the Packers -- and maybe another depending on the severity of Geno Smith's knee injury.

Seattle Seahawks quarterback Geno Smith exited "Sunday Night Football" with a knee injury after taking an awkward fall. More NFL: Lions Fear They Have Lost Two More Defenders to 'Season-Ending' Injuries Following Loss The veteran signal-caller attempted to brace his fall while avoiding a low tackle by Green Bay Packers linebacker Edgerrin Cooper by planting both feet and subsequently toppled backward and grabbed for his right ankle.