Defensive end Patrick Kerney returned to the practice field, returning from a calf injury he suffered in practice over the weekend. Kerney took part in some individual drills, but wasn't on the field for team practice (Baraka Atkins worked out in his spot).

Defensive tackle Red Bryant did not practice, and coach Mike Holmgren said his knee will be evaluated. Bryant was watching at the beginning of practice, his left leg covered in a black legging. He was wearing glasses.

Also, linebacker Lofa Tatupu was limited in practice, which Holmgren said was because of a "bump or bruise" but he did not specify further. D.D. Lewis worked out in place of Tatupu with the first-unit defense in 11-on-11 drills.

Tatupu did participate in a pass-rush drill in which running backs try to pick up a blitzing linebacker who has a running start. Fullback Leonard Weaver put Matt Castelo on his back, and Holmgren said after practice that Weaver is the best blocker out of the backfield. I'll write more about Weaver later today.

One other clarification: Chris Spencer was on the field for the first practice of training camp, but was limited and he hasn't participated in practice since. The assumption was that it was an issue with his shoulder, which was operated on during the offseason. Holmgren said Thursday that it's Spencer's back, which tightened up that first practice. Neither Spencer nor Chris Gray will participate in Saturday's scrimmage.

Other notes: Kelly Jennings played great coverage on a deep pass thrown to Bobby Engram during a seven-on-seven passing drill ... Ben Obomanu caught a slant over the middle and then juked away from a defender, drawing 'Oooohs' from the offensive teammates watching. Those turned to groans when cornerback Kevin Hobbs poked the ball away from Obomanu. The defense recovered the fumble ... A pass intended for Logan Payne was defended well by safety Jordan Babineaux. The ball hit Payne's hands, but it was the defense on the play that caused the incompletion. And had it been a game, Payne probably would have gotten clobbered by another safety in the middle ... The team worked out in the dime package in the morning, Lawrence Jackson moving inside to tackle with Atkins and Darryl Tapp at the ends. That's something that was speculated about when Seattle drafted Jackson in the first round.