A team spokesman announced the move Saturday morning, minutes before the Seahawks started training camp. Morey was a Pro Bowl selection in 2008 with Arizona, and he signed a free-agent contract with Seattle this offseason.
The 34-year-old has been a leader in raising awareness of head injuries. Last season, he was named co-chair of the NFL Players Association's concussion and traumatic brain injury committee.
This spring Morey admitted that the revelation that the late Cincinnati Bengals receiver Chris Henry had brain damage, likely from repeated blows to the head, rattled him.
Morey went to Brown, then played nine seasons for the Patriots, Steelers and Cardinals.
Copyright 2010 by The Associated Press
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