Ellerbe (hip) has been ruled out for Sunday's game against the Redskins.
Hau'oli Kikaha (ankle) is probable to return, but the Saints won't have any of Ellerbe, David Hawthorne (hamstring) and Ramon Humber (hamstring). Rookie Stephone Anthony is the only viable IDP option from the team's linebacking corps.
Hawthorne did not record a tackle in Thursday's game against the Falcons.
With the return of Dannell Ellerbe to the Saints' lineup, Hawthorne's playing time has dwindled, as he played only three snaps against the Falcons, according to the New Orleans Times-Picayune. So long as Ellerbe is healthy, Hawthorne is not worth owning in IDP leagues.
Irvin (knee) is inactive Sunday against the 49ers.
Irvin (knee) was listed as out earlier in the week, so this news comes as no surprise. Expect both Mike Morgan and Kevin Pierre-Louis to take over duties at strong side linebacker in Irvin's absence. The Seattle defense should be just fine without him at home against the 49ers offense.
Seahawks running back Marshawn Lynch is expected to need "a couple weeks to see how he does" and "to see if he can recover" from his abdominal injury, ESPN's Adam Schefter reports.
While the Seahawks have not provided official word as to Lynch's status following his visit to a specialist, it sounds like they may be content to ride it out for a few weeks and see if Lynch can avoid sports hernia surgery. Schefter reported earlier Tuesday that Lynch will likely miss Week 12. Thomas Rawls is locked in as the primary running back for Seattle while Lynch is out.
Richardson (hamstring) has been ruled out for Sunday's game against the 49ers.
Richardson made his first appearance of the season Sunday against the Cardinals, hauling in a 40-yard pass on his only target. His good fortune didn't last long, as he suffered a hamstring injury on the play and stumbled before reaching the end zone. Even when healthy, Richardson probably won't get enough snaps to warrant fantasy consideration.