Posted by ESPN.com's Mike Sando
We know this after taking a look at the players named inactive for each team:
Seattle: Kicker Brandon Coutu, safety C.J. Wallace, fullback Leonard Weaver, linebacker David Hawthorne, guard Mansfield Wrotto, defensive tackle Red Bryant, and defensive end Patrick Kerney. Charlie Frye is the third quarterback.
Arizona: Tackle Elliot Vallejo, guard Brandon Keith, defensive tackle Alan Branch, receiver Early Doucet, tight end Jerame Tuman, tight end Ben Patrick and defensive end Kenny Iwebema. Brian St. Pierre is the third quarterback.
The Seahawks will probably miss Kerney the most. He had seven tackles, five quarterback hits and three sacks when Arizona visited Qwest Field last season