It appears much more likely he will play though after Friday's walk-through workout in which he did the most extensive throwing he has done since injuring his right pectoral muscle on Oct. 9 at New York.

"Tarvaris had his best day in the last couple of weeks," coach Pete Carroll said. "He just started to come out of it, and threw the ball well. He's still questionable, I guess is (how) we list him. We'll take it to the next couple days and see where we are, but that's a very good sign. He felt the best, he had the most work. We'll see what happens with that."

Jackson was limited in practice on Wednesday and Thursday, and backup Charlie Whitehurst taking the throwing work during practice.

Jackson had been working with the first-unit offense with the walk-through portion of practice, but on Friday, he also threw the ball.

"This is probably my best day, today," Jackson said. "I still kind of feel it when I throw a little bit. I've already kind of got it in my head that there's going to be some pain when I throw a little bit. There's going to be a little soreness."

The key, Jackson said, is whether the injury prevents him from doing certain things.

"Whether I can make all the throws and not be affected by my pec," he said.

Friday's workout was a step forward.

"I think it was more important for the coaches to see it than me," Jackson said. "They don't want to throw you out there, throw you in a bad position when you can't really make the plays that you normally can make. So I think it was good for those guys to see that, for me to go out there and make the throws and prove to myself I can do it."

Starters TE Zach Miller, C Max Unger and RB Marshawn Lynch -- who all missed last week's game -- are probable, meaning there is a virtual certainty they will be available for normal duty.

	Seahawks injury report
Wednesday	Thursday	Friday
Did not practice	Did not practice	Did not practice
CB Brandon Browner (Not Injury Related)	S Atari Bigby (hamstring)
	S Jeron Johnson (ankle)
Limited in practice	Limited in practice	QUESTIONABLE
QB Tarvaris Jackson (shoulder/pec)	Jackson (shoulder/pec)	Jackson (pec)
RB Marshawn Lynch (back)
TE Zach Miller (neck/head)
C Max Unger (foot)
Full practice	Full practice	PROBABLE
S Kam Chancellor (knee)	Chancellor (knee)	Chancellor (knee)
	C Max Unger (foot)	Unger (foot)
	RB Marshawn Lynch (back)	Lynch (back)
		S Atari Bigby (hamstring)
	TE Zach Miller (concussion)	Miller (concussion)
		S Jeron Johnson (ankle)
	Bengals injury report
Wednesday	Thursday	Friday
Did Not Practice	Did Not Practice	OUT
LB Rey Maualuga (ankle)	Maualuga (ankle)	LB Rey Maualuga (ankle)
LB Thomas Howard (hamstring)
Limited in practice	Limited in practice	QUESTIONABLE
CB Nate Clements (knee)	Clements (knee)	LB Thomas Howard (hamstring)
LB Dan Skuta (groin)	Skuta (groin)	CB Adam Jones (neck)
	LB Thomas Howard (hamstring)	CB Morgan Trent (ankle)
Full participation	Full participation	PROBABLE
CB Kelly Jennings (hamstring)	Jennings (hamstring)	CB Nate Clements (knee)
CB Adam Jones, PUP (neck)	Jones (neck)	TE Jermaine Gresham (hamstring)
		CB Kelly Jennings (hamstring)
		LB Dan Skuta (groin)