Seattle Seahawks starters K.J. Wright and James Carpenter will be held out of action this Sunday with concussions, head coach Pete Carroll told reporters on Friday.

Wright, a second-year linebacker, suffered a concussion early in the Seahawks' Nov. 4 game against the Minnesota Vikings. He was replaced by Mike Morgan in that game, and will be again this week. Morgan has totaled nine tackles in limited time this season - his most extensive playing time coming in Wright's relief.

Carpenter will be replaced on the offensive line for the second straight game by John Moffitt. Carpenter became ill during practice the week before playing Minnesota and was diagnosed with a concussion. Also, defensive tackle Greg Scruggs has an oblique injury and will be a game-time decision.

The good news, however, is that coach Pete Carroll said "everyone else is on track." For the Seahawks, that means despite missing two straight practices with back and wrist problems, running back Marshawn Lynch is on track to play. Defensive tackle Jason Jones and cornerback Richard Sherman should also be able to play on Sunday.