The case filed Thursday accuses Pop Warner of failing to monitor games, practices, rules, equipment and medical care “to minimize the long-term risks associated with brain injuries including repetitive sub-concussive hits”; failing to accurately diagnose brain injuries; and failing to approve the best equipment available. Pop Warner and the other defendants “acted with callous indifference” and players who participated in Pop Warner dating back nearly two decades are entitled to an unspecified amount of damages, according to the complaint.