Thomas Jones on concussions: It's scary to think about what causes me to forgetOn SI Now, former NFL running back Thomas Jones discusses why he wants to donate his brain to research and what motivated him to start acting.SI Staff|Share on FacebookShare on XAdd us as a preferred sourceOn SI Now, former NFL running back Thomas Jones discusses why he wants to donate his brain to research and what motivated him to start acting.Loading recommendations... Please wait while we load personalized content recommendationsPublished Jan 14, 2015 | Modified Jan 14, 2015SI STAFFShare on FacebookShare on XHome/NFL
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