Joe Clayton, president and CEO of Dish Network, introduces the Sling TV earlier this month at the International Consumer Electronics Show in Las Vegas. Jae C. Hong/AP hide caption

itoggle caption Jae C. Hong/AP

Varsity football captain Nahshon Ellerbe is a senior at Trinity Christian Academy in Addison, Texas. Jeffrey McWhorter/Trinity Christian Academy hide caption

itoggle caption Jeffrey McWhorter/Trinity Christian Academy

High school athlete Graham Hill, number 50, suffered a concussion in 2013 while playing football at Trinity Christian Academy in Addison, Texas. Courtesy of Jeffrey McWhorter hide caption

itoggle caption Courtesy of Jeffrey McWhorter

New England Patriots head coach Bill Belichick speaks during an NFL football news conference at Gillette Stadium, on Saturday in Foxborough, Mass. Belichick defended the team against allegations they had cheated by using underinflated footballs in a championship game. Steven Senne/AP hide caption

itoggle caption Steven Senne/AP

Chicago Cub Ernie Banks, right, told NPR's Scott Simon, left, in 2014 that he had a lot of fun winning games, but the main thing in his life was "making friends." Peter Breslow/NPR hide caption

itoggle caption Peter Breslow/NPR