Is the NFL in decline? From CTE to low TV ratings, warning signs are there
Sliding NFL ratings could deliver hit to TV networks - CBS News
The new normal' - Why fighting in the NHL has dropped to historic lows - ESPN
Kaepernick Effect? Falling ratings force NFL TV networks to give back free ads
National Football League - Wikipedia
Weekly Thoughts: NFL Ratings – Chenmark
Dr. Omalu identified and described Chronic Traumatic Encephalopathy [CTE] in American football players beginning in 2002 when he performed an autopsy
A Historical Foundation of CTE in Football Players: Before the NFL, There was CTE
The NFL misses Peyton Manning
NFL still a giant as it prepares for new season but storm clouds gather, NFL
The NFL Has Done The Bare Minimum And Salvaged Its Reputation