The Green Bay Packers released safety Nick Collins on Wednesday.
Collins sustained a career-threatening neck injury in the Packers' Sept. 18 win at Carolina last season.
"From the beginning of this process, we have taken our time and sought numerous medical opinions while maintaining consistent dialogue with Nick," Packers general manager Ted Thompson said in the statement. "In the end, we were not comfortable clearing him to play again. As with all of our players, Nick is a member of our family and we thought of him that way as we came to this conclusion.
"Nick is a part of our core, and this is a very difficult day for all Packers. Making this kind of decision is never easy, especially when it involves someone like Nick Collins. He has meant so much to the community, his teammates and the organization. He is a good man and will always be part of the Packers family."