One of my favorite Seahawks from the past few years has been 3rd/4th receiver D.J. Hackett. If you don't remember him, he was kind of a poor-man's Terrell Owens, in that he was tall and could jump, and seemed to have a knack for big catches. Then he sprained his ankle and basically never played again for the Hawks - he signed with Carolina for 2 years $3.5 mil (which seems like a deal compared to say, Nate Burleson), but it seemed like the Seahawks had decided to move on and wouldn't sign him at any price. He got hurt again with Carolina, who simply waived him, and now's he's signed with Washington.
Does anyone with more info know what the story was with his original injury? A ankle sprain - even a bad one - doesn't seem that serious that two teams would pass.