Kupp (back) was a full participant at the Seahawks' practice Thursday, Bob Condotta of The Seattle Times reports.
Kupp opened the week with a limited session Wednesday as a result of a back injury, but he was able to erase any concern about his availability for Week 2 with a full practice one day later. The wide receiver caught two of three targets for 35 yards in the team's 13-10 win over New England on Sept. 9, and he'll be working with Drew Lock at quarterback against the Cardinals on Sunday.