Jennings, who was sidelined for last Thursday's game against the Chicago Bears, is questionable against the Seahawks.
Jennings was originally injured in the season opener against the San Francisco 49ers. The impending free agent also missed time during the preseason because of a concussion.
Without Jennings, the Packers still were in position to use their three- and four-receiver packages without him in the win over the Bears. Veteran Donald Driver had a 26-yard TD catch in the 23-10 victory.
Information from ESPN NFL Senior Writer John Clayton was used in this report.