In July 2015, a federal court in San Francisco threw out a suit by youth soccer players challenging the way FIFA and a group of U.S.-based soccer organizations deal with head injuries. A state court in Illinois appears poised to do the same in a suit by football players against the Illinois High School Association saying it hasn't done enough to protect them against the risk of concussions. Two attorneys say the cases may show the limits of litigation as a way to improve concussion safety.