NFL concussions: Official acknowledges link between football, CTEAn NFL official acknowledged for the first time Monday that playing football is linked to degenerative brain diseases like CTE.SI Staff|Share on FacebookShare on XAdd us on An NFL official acknowledged for the first time Monday that playing football is linked to degenerative brain diseases like CTE.Published Mar 15, 2016 | Modified Mar 15, 2016SI STAFFShare on FacebookShare on XHome/NFL