Seattle added Hass to the team's practice squad two days after trimming down to the 53-man roster on Sept. 5. The Seahawks signed Hass to the active roster last week because wide receiver Ben Obomanu (oblique) was injured. However, Hass was inactive for the Detroit game. Walker is valuable to Seattle because he can play both defensive tackle and defensive end in the team's 4-3 scheme.
The Seahawks already lost a promising defensive lineman to Tampa Bay, which plucked Michael Bennett off the practice squad and signed him to the 53-man roster. Bennett, a 6-foot-3, 274-pound rookie out of Texas A&M, notched a sack for the Bucs in the team's 38-28 win over Green Bay last week. The Seahawks likely did not want to see Walker leave their roster as Bennett did weeks earlier.
--QB Matt Hasselbeck likely will take on an even larger role in the team's offense as coach Jim Mora leans on the veteran quarterback to throw the ball with the running game struggling.
--RB Julius Jones is playing better, although the stats don't show it. He's only rushed for 97 yards in the past three games, but the Seahawks are using him more in the passing game.
--TE John Carlson is third on the team with 33 receptions for 372 yards and two touchdowns. He's on pace to break the franchise marks he set as a rookie for receptions and receiving yards for a tight end.
--WR T.J. Houshmandzadeh got into the end zone for the third time this season. He now has 41 receptions for 417 yards and is tied for 18th in the league overall for receptions.
--WR Nate Burleson leads the team in receptions with 45 and is 10th in the NFL overall. Burleson guaranteed a win over the Cardinals this week.
--LB David Hawthorne now has 44 tackles, three interceptions, two sacks and a recovered fumble. He has started just three games.
--CB Marcus Trufant picked off his first pass of the season against Detroit. Seattle is 14-2 when Trufant intercepts a pass.
--DE Patrick Kerney is tied for 14th overall in the league in sacks with five this season.