Brett Farve told the TODAY show Monday that he's been experiencing memory loss he believes is related to his 20-year pro football career, in addition to playing every game over four years in college and before that, high school.
Farve said he can't remember his youngest daughter's time playing soccer, and sometimes has trouble remembering a word or finishing sentences.
"Don't want to knock football at all," he said in the interview. "I think that's unfair. I knew what I was getting into. To think that I could help maybe ease maybe some of the potential trauma, but still keep the integrity of the game, I'm willing to do that."
Farve's comments add to ongoing concerns over head injuries that can cripple a player for life.
In late August, the NFL agreed to a $765 million settlement with 4,500 former players who had filed a class action suit charging the league either knew or should have known the long-term consequences of concussions.
Most of the money will go to players' medical care and some to research. Football has changed from the days of leather-clad helmets and muddy brawls, but experts say there are still things that can be done to make the game safer.