Over the last several years, Brett Favre has an emerged as a sort of unlikely face of football's uncertain future. The man known for being the NFL's Iron Man, the ultimate tough guy and grit-it-out warrior, has had some harsh words for the safety of the game and the impact it has on the bodies of its players.
In February, Favre was quoted as saying he "cringes" when he sees young children playing tackle football.
In March, Favre said he was certain he suffered numerous concussions throughout his career, adding that he is "absolutely concerned" about his future health and that he would prefer his grandsons play golf instead of football.