Johnny Manziel has had conversations with multiple NFL teams about returning.

"I know the situation that I put myself in. I know the year I took off and obviously the mistakes that I made," Manziel said. "Right now, I'm hopeful. I'm really hopeful. I think that I made some progress in that regard. But we'll see. Whenever I get a call, I'll do whatever I can to make the most of it."

Manziel has dealt with substance abuse and legal issues.

Manziel started just eight games at quarterback for the Browns, throwing seven touchdowns and seven picks.