The Seahawks made a roster move Monday, singing linebacker Quayshawn Nealy to the 90-man roster and waiving running back Cameron Marshall.
Nealy signed with Seattle last year as an undrafted free agent out of Georgia Tech, then was waived before the start of the regular season. Nealy also spent time with Tampa Bay and Arizona last season.
Marshall, who previously played in the Canadian Football League, signed with Seattle earlier in training camp. He had two carries for 8 yards in Saturday's preseason game at Kansas City, as well as two kick returns for 51 yards.