The Latest: Helmets by position in NFL's future? (The Associated Press)

NFL players may be wearing different helmets based on their position in the not-too-distant future. The chairman of the league’s head, neck and spine engineering subcommittee outlined the research that’s leading in that direction in an informal gathering with reporters at the NFL owners meetings on Tuesday. Dr. Jeff Crandall, director of the Center for Applied Biomechanics at the University of Virginia, said the NFL is working to develop reliable sensors to monitor the minute details of the impact of concussion-causing hits.