After seemingly finalizing their 53-man active roster with the trade of Christine Michael to the Dallas Cowboys — clearing a spot for veteran Fred Jackson — the Seahawks started assembling their practice squad on Sunday. Former UW Huskies WR Kasen Williams reportedly joined the Seahawks’ practice squad Sunday. (Otto Greule Jr/Getty Images) Seven players have joined the team so far, with two more rumored additions. The seven official signings include two former Seahawks draft picks in linebacker Eric Pinkins and tackle Terry Poole, along with former Washington Huskies wide receivers Kasen Williams and Kevin Smith. Running back Rod Smith, tight end RaShaun Allen and offensive lineman Will Pericak also rejoined the team on Sunday. All