The Seahawks announced a pair of roster moves on Thursday.
They have signed undrafted rookie defensive tackle Anthony Campbell. Defensive tackle DeMeco Roland, who also went undrafted this year, was waived in a corresponding move.
Campbell played at Miami for the last two years and appeared in nine games. He also played two seasons at Louisiana-Monroe and had 14 tackles, five tackles for loss, a sack, two passes defensed, and a forced fumble over all four years.
Campbell tried out for the Vikings and Eagles earlier this month.
Fifth-round pick Rylie Mills, J.R. Singleton, and Bubba Thomas are the other rookies on the Seattle defensive line.