The Seahawks made the move Wednesday.
Seattle had a roster spot open after releasing wide receiver Charly Martin on Tuesday. Martin was re-signed to the practice squad Wednesday.
Thurmond was first injured last season against Cleveland when he suffered a broken fibula and significant ankle damage. During his rehabilitation early last year, Thurmond suffered another fracture setting back his recovery. He began practicing two weeks ago.
Thurmond has started four games and played in 19 combined in his first two NFL seasons.
More Sports Headlines
Seahawks' Chancellor reportedly seeking more money, may hold out M's pitching woes continue in 9-5 loss to Twins M's trade Ackley to Yankees in 3-player deal AquaSox fall 8-2 to Volcanoes UW coach Petersen not looking forward to Boise return Jetsí Richardson facing charges for resisting arrest Bills place Williams on active/not-football injury list Brady lawsuit transferred from Minnesota to New York court
Our new comment system is not supported in IE 7. Please upgrade your browser here.