Big Lo, the Seattle sports superfan, made an appearance this afternoon.

On the field, the Seahawks have two new players after placing LB Matt Castelo and CB Derrick Johnson on the waived/injured list. One is LB Dallas Sartz, a former fifth-round pick of the Washington Redskins out of USC who was most recently with the Minnesota Vikings until May. The other is CB Marquis Floyd, who has spent the past five seasons playing arena football. Sartz and Floyd are wearing the jersey numbers vacated by Castelo and Johnson, 49 and 29.

FB Leonard Weaver has a sore hamstring and did not partake in the afternoon practice.

Bobby Engram suffered a cracked bone in his shoulder and will miss six to eight weeks.

Engram suffered in the injury on his first catch in Friday's exhibition game in Minnesota. He did not practice Sunday, but his injury was not disclosed.

Holmgren said in the worst-case scenario, Branch won't be back until after the Seahawks by in Week 4. Seattle plays the Super Bowl champion New York Giants the week after its bye. That game is Oct. 4.

The Seahawks already are practicing without wide receiver Deion Branch, who is recovering from knee surgery. The injury to Engram puts them in a situation in which the Seahawks may have to carry more receivers than they initially planned on the 53-man roster.

"You have two receivers who are going to be on the roster, but might not be playing," Holmgren said. "You've got to keep those guys so you can't really fiddle around with that number too much. In fact, you might have to add a number to it."

Defensive tackle Marcus Tubbs is a free agent after he was released. The technical term -- NFL-ese -- is terminated/failed physical. It sounds so drastic, but it just really means that he doesn't have to clear waivers. Tubbs was a first-round pick in 2004. He underwent surgery to repair a torn knee ligament suffered last season in an exhibition game. He had not practiced. Coach Mike Holmgren said Tubbs' did some running and had the knee swell up on him. The team released him because he failed a physical. He had not practiced yet this season.

Linebacker Lofa Tatupu returned to practice. He sat out Sunday's workout with a sore knee. Matt Hasselbeck did not return. He's out with a sore back.

The other player who returned was defensive end Nu'u Tafisi.