Ex-players sue NFL over concussion risksCNN's Dr. Sanjay Gupta talks to former NFL player Fred McNeill who is one of 75 players suing the league saying the NFL concealed the harmfulSI Staff|Share on FacebookShare on XAdd us on CNN's Dr. Sanjay Gupta talks to former NFL player Fred McNeill who is one of 75 players suing the league saying the NFL concealed the harmful effects of concussions until 2010.Published Jul 22, 2011SI STAFFShare on FacebookShare on XHome/NFL