CB Kelly Jennings hurt his knee in practice and did not return. We don't know the severity of the injury. We'll pass it along as information becomes available. ... C Robbie Tobeck was back at practice today, but only as a spectator. He expects to play Sunday, but Mike Holmgren will make that decision. Tobeck missed the game Sunday with intense headaches and chills. ... QB Matt Hasselbeck and RB Shaun Alexander practiced again. Hasselbeck seemed to gain some momentum as the practice progressed. Alexander was a bit limited, by design. ... Missing practice: Tobeck, CB Kelly Herndon, FB Josh Parry, LB D.D. Lewis and RT Sean Locklear.