San Francisco 49ers running back Roger Craig revealed during his Hall of Fame induction speech Saturday that he has been diagnosed with early-stage vascular dementia. The speech was pre-recorded, according to ESPN. Craig, 66, said in his 10-minute address that he hopes sharing his story can help others, per Pro Football Talk.

According to Yahoo Sports, Craig's doctors believe the dementia may be related, at least in part, to concussions he sustained during his 11-season NFL career. In his remarks, Craig emphasized that the diagnosis does not define him.