evidence: Former NFL quarterback Colin Kaepernick, 36, hasn't played an NFL game since 2016, but that doesn't mean he wants to be done with the game. While on "CBS Mornings," Kaepernick explained his desire to play football and what pushes him to continue to try for a chance to join a team. [...] Kaepernick has been vocal about his desire to join an NFL team, sending messages to squads, posting videos of him training and making it known that he believes he's still in football shape.