Claiborne (hamstring) has been ruled out for Sunday's game in Miami, Armando Salguero of the Miami Herald reports.
With Claiborne unavailable, Byron Jones figures to primarily work as a cornerback, which should free up some extra snaps for safeties Jeff Heath and J.J. Wilcox. Claiborne isn't particularly good, so his absence isn't cause to significantly downgrade the Dallas defense.
Head coach Pete Carroll said Wednesday that Baldwin (ankle) will play Sunday against the Steelers.
Baldwin's minor ankle injury may impact his practice participation this week, but Carroll isn't worried about the availability of his No. 1 receiver once game day arrives. While Pittsburgh is coming off a bye week, the defense has been touched up by wide receivers this season, allowing 12.4 YPC and nine touchdowns to wideouts through 10 games.
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.
Lynch underwent sports hernia surgery Wednesday and will be out three to four weeks, the Seattle Times reports.
Coach Pete Carroll didn't rule out that Lynch could be done for the season, but he said doctors were "very optimistic" that they fixed the issue and that Lynch can return quickly. Thomas Rawls will start while Lynch is out.
Rawls was limited at Wednesday's practice due to a knee injury, John Boyle of the Seahawks' official site reports.
Only a few short hours after Marshawn Lynch's sports hernia surgery was announced, Rawls landed on the injury report, though his ability to practice in some capacity doesn't really place a cloud over his Week 12 availability. Expected to start for the next 3-to-4 weeks, at least, in Lynch's place, Rawls has a Steelers defense on the docket that has given up 3.9 YPC but just two touchdowns to running backs this season.
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.