A series of four scary concussions already had Austin Collie's NFL career in question before a ruptured right patellar tendon ended his 2012 season in late September.
On the heels of the Indianapolis Colts' decision to send Collie to free agency, the oft-injured wide receiver isn't ready to give up hope of making an impact in 2013.
Unofficial list of free agents
"I'm playing. Right now, it would take a doctor to tell me, 'You can't play anymore.'" Collie told The Indianapolis Star on Saturday. "I feel like this is a gift that I've been given, and personally I feel I should still be doing it. That's just me."
Collie has no hard feelings for the Colts' decision-makers, who informed him of his exit in person. "They showed a lot of class," Collie said. "I told (team owner) Mr. Irsay thanks for everything, thanks for giving me a shot."
Although Collie might never recapture early 2010 form -- when he averaged more than seven receptions and 80 yards per game in six contests before thumb surgery -- he's optimistic about his chances of being ready for training camp in late July.
"My knee feels better than it has in the last four or five years," Collie insists.
Asked where he might play next season, Collie replied, "I honestly don't know."