His coach and teammates suspect the Pro Bowl wide receiver has a better than a 50-50 shot of playing in the Packers' first road game this season.
"I thought Greg looked good today," coach Mike McCarthy said after watching Jennings practice Saturday for the second straight day. "He made a big jump from earlier in the week. He practiced well."
Concerns about Jennings' availability cropped up after the team withheld him from practice Thursday. Jennings tested his groin Tuesday. He practiced on a limited basis the last two days but had a full workout Saturday.
"His examination in the morning (Sunday) will be the key, whether he goes or not," McCarthy said. "But I felt he looked like himself today."
Jennings wasn't available in the locker room after practice Saturday. A day earlier, he said he was planning to play Monday even though his groin is not fully healed.
"But it feels really good," he said. "I'm extremely excited about the progress."
Jennings was initially hurt in the final minutes of Green Bay's season-opening loss to San Francisco on Sept. 9. The Packers had a quick turnaround for their next game, beating Chicago four days later.
Receiver Jordy Nelson wouldn't speculate Saturday on whether Jennings would play Monday night.
"He knows his body better than anyone, so everything will be by him," Nelson said. "I'm not even going to talk about his injury or anything. But hopefully he can go."
The Packers could sure use him. Their high-scoring offense of last season is mostly intact, but Green Bay has struggled to score. They are averaging 22.5 points and of their five touchdowns, two have come on special teams.
"It's going to be important for us to have (Jennings) back," receiver/kick returner Randall Cobb said. "We know what he brings to the game. So I think we'll be excited if he's able to play."
Packers injury report
Out: LB Jamari Lattimore (ankle). Doubtful: CB Davon House (shoulder; limited). Questionable: TE Tom Crabtree (shoulder; did not participate); WR Greg Jennings (groin; limited); S Sean Richardson (hamstring; limited); RB James Starks (toe; limited); DE C.J. Wilson (groin; limited). Probable: WR Randall Cobb (hamstring; full); LB Terrell Manning (concussion; full); LB Nick Perry (wrist; full); G Josh Sitton (knee; limited).
"This is his first full week (of activity)," McCarthy said of House. "With the extra practice and everything, he just has some more work to do. He's just not quite ready."
Cobb was limited on Thursday and Friday before progressing on Saturday.
"I actually did it right before the game, before the opening kickoff," Cobb said. "I was able to play the whole game with it last week. I don't think it'll be a problem (for Monday)."
Seahawks injury report
Out: CB Byron Maxwell (hamstring). Questionable: WR Doug Baldwin (shoulder; did not participate). Probable: RB Marshawn Lynch (back; full); WR Charly Martin (chest; full); TE Zach Miller (foot; full); T Russell Okung (knee; full); WR Sidney Rice (rest; did not participate).
Baldwin didn't participate in practice, the second straight day the Seahawks leading receiver from 2011 did not practice. Coach Pete Carroll says Baldwin banged his shoulder in practice earlier in the week, but that Baldwin believes he will be able to play.
Follow Associated Press writer Chris Jenkins on Twitter at twitter.com/ByChrisJenkins.