Nick Collins has not given up hope on playing football again.

The Packers safety who suffered a neck injury Week 2 of the 2011 season and was eventually released by the team made it clear on Twitter Monday that he still wants to play. In back-to-back tweets (see below), Collins said he is "ready for action" and "ready to dominate."

Green Bay's medical staff would not clear Collins the off-season after the 2011 season and he has not played in the two seasons since. Now 30 years old, Collins underwent cervical fusion surgery.

At the time of the safety's release, general manager Ted Thompson said he was not comfortable clearing Collins to play.

“From the beginning of this process, we have taken our time and sought numerous medical opinions while maintaining consistent dialogue with Nick," Thompson said in a statement then. "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.”

Playing the sport again is a decision Collins has agonized with since the injury happened. And then as an honorary captain in Green Bay's playoff game against San Francisco this year, Collins spoke about adjusting to life after football.