Student athlete applicants with histories of domestic or sexual violence will no longer be eligible to play at Indiana University. Dottie Day/Flickr hide caption
Wide receiver Hunter Renfrow of the Clemson Tigers celebrates with wide receiver Deon Cain after a 24-yard touchdown pass in Monday night's championship game. Ronald Martinez/Getty Images hide caption
Alabama running back Derrick Henry celebrates with teammates and reporters after the College Football Playoff national championship game between the Alabama Crimson Tide and the Clemson Tigers last January. Icon Sports Wire/Corbis via Getty Images hide caption
The University of Minnesota Golden Gophers, whose home stadium is pictured, are scheduled to play in the Holiday Bowl on Dec. 27. Paul Sancya/AP hide caption
Members of the University of Tennessee grounds crew paint the "Battle at Bristol" logo on the football field at Bristol Motor Speedway in Bristol, Tenn. Earl Neikirk/Bristol Herald Courier via AP Images hide caption
UCLA safety Rahim Moore (center) celebrates an interception against Temple with teammates Sheldon Price (left) and Glenn Love during the third quarter of the EagleBank Bowl in 2009. Evan Vucci/AP hide caption
John Castello decided to stop playing football when he learned about the risks of brain injury. Dave Marmarelli/DGM Photography hide caption
The Impact Of 'Concussion': High School Football Player Changes Course
Tight end O.J. Howard of the Alabama Crimson Tide scores a 53-yard touchdown Monday in the third quarter against the Clemson Tigers during the 2016 College Football Playoff National Championship Game in Glendale, Ariz. Kevin C. Cox/Getty Images hide caption
"Osceola" stands in front of a crowd at the FSU homecoming game. Eileen Soler/Seminole Tribune hide caption
Sister Lisa Maurer, nun and kicking coach for the College of St. Scholastica football team, watches during drills in October. Derek Montgomery for MPR News hide caption
Arkansas running back Jonathan Williams had just scored a touchdown against Missouri last season when he dropped the ball and raised his hands in a hands up, don't shoot" gesture. L.G. Patterson/AP hide caption
In this Sept. 15, 1930, photo, coach Knute Rockne puts his football proteges through the first football drill of the season at Cartier Field, South Bend, Ind. Rockne finished his career with an .860 winning percentage and delivered the famous "Win one for the Gipper" speech. AP hide caption
Columbia University players watch hopefully as they take on Fordham University. Despite a good start, the game ended in a loss for the Lions. Amy Pearl/WNYC hide caption
After five football players were arrested Thursday, Rutgers University suspended the group. Two other former players are also suspected of crimes that range from assault to robbery. Here, the school's board of governors is seen in a meeting this summer. Mel Evans/AP hide caption