Children in a Heads Up Football league listen to NFL Commissioner Roger Goodell speak in Fairfield, Conn., Wednesday, Aug. 28, 2013. Heads Up Football is a comprehensive youth football membership ... more 
Children in a Heads Up Football league listen to NFL Commissioner Roger Goodell speak in Fairfield, Conn., Wednesday, Aug. 28, 2013. Heads Up Football is a comprehensive youth football membership program developed by USA Football and supported by the NFL to further advance youth player safety. (Jessica Hill / AP Images for National Football League) less 
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Associated Press
Wed, Aug 28, 2013 8:50 PM EDT