NFL: CTE, head injuries remain league's biggest issuesSI Now host Robin Lundberg explains why watching the NFL is becoming a guilty pleasure.SI Staff|Share on FacebookShare on XAdd us as a preferred sourceSI Now host Robin Lundberg explains why watching the NFL is becoming a guilty pleasure.Loading recommendations... Please wait while we load personalized content recommendationsPublished Aug 2, 2017 | Modified Aug 2, 2017SI STAFFShare on FacebookShare on XHome/NFL