Seattle Seahawks LB Jon Rhattigan (knee) did not practice all week and has been ruled out for Week 18 versus the Arizona Cardinals. OT Brandon Shell (shoulder) also did not practice all week and is listed as doubtful. RB Alex Collins (abdomen) did not practice Friday, Jan. 7, and is listed as questionable. OG Gabe Jackson (knee), DT Al Woods (shoulder), DT Poona Ford (concussion) and DT Robert Nkemdiche (knee) practiced in full on Friday and no longer appear on the injury report. DE Carlos Dunlap (rest), OT Duane Brown (rest), WR DK Metcalf (foot), WR Freddie Swain (ankle), OL Ethan Pocic (finger), LS Tyler Ott (shoulder), S Quandre Diggs (knee), DT Bryan Mone (knee) and RB Rashaad Penny (groin) were not given a practice designation on Friday but are expected to be available.
Seahawks.com