Edawn Coughman, who had a tryout at last week’s minicamp, was signed today by the Seahawks.
A 6-foot-4, 305-pound offensive lineman, Coughman played the 2011 CFL season with the Toronto Argonauts, but was released May 14. He attended Dodge City Community College and Shaw University.
To clear a spot on the 90-man roster, tight end John Nalbone was released. Nalbone finished the 2011 season on the Seahawks’ practice squad.