"It won't be a partisan issue if it affects some of their children," Carson said of Republicans.
Former player: Parents should be warned of football's risks →
"I was a team captain for 10 of my 13 seasons with the Giants," Carson said. "I know what leadership is, and I know a leader when I see one. Cyrus is a leader. He will lead the NFLPA in the right direction. No doubt about it."
Mehri's challenge to Smith draws retired players' support →