Seattle Seahawks OT Duane Brown (biceps, knee), WR Jaron Brown (knee), OG Mike Iupati (neck), C Joey Hunt (leg), WR Malik Turner (concussion), DE Jadeveon Clowney (core) and LB Mychal Kendricks (knee) did not participate in practice Wednesday, Jan. 1. S Quandre Diggs (ankle) was limited during practice, while TE Luke Willson (hip) fully participated in practice.