Lynch, who has not played since Week 10 against Arizona, is recovering from abdomen surgery that took place on Nov. 25.
"We've got to go tomorrow, make sure that he's OK after today, that same old thing," coach Pete Carroll said. "We'll see how he's taken to the week's work and all of that. He looked good during the week and did some really good stuff, so we'll just use all of the time that we have available.
"So I have not said yet that he's playing. I know that's been out there, but I don't know really until we finish the week. He's looked really good, and we're hoping, so very optimistic about that."
Earlier Friday, during his weekly appearance on KIRO 97.3 FM, Carroll was asked about Lynch and said, "He's going to play."
Signs point to Lynch being the starter and getting the bulk of the carries. He took every rep the team needed him to take this week, Carroll said.
Carroll was asked if Lynch, after putting in weeks of rehab, is leaner now than he was before surgery.
"As a matter of fact, he is," Carroll said. "He does look really good. He's really trim. That's a sign of hard work and him being really tuned in. He does look very good."
Earlier in the week, offensive coordinator Darrell Bevell said Lynch would be able to handle a full workload. Carroll reiterated that the situation is similar to the one the Seahawks face in Week 1 after Lynch hasn't gotten a lot of work during the preseason. The last time he played in a game was on Nov. 15.
Lynch appeared in seven games during the regular season, tallying 111 rushes for 417 yards (3.76 YPC).