Two new mandates are changing the way concussions are treated in high school sports, the Miami Herald reports. Returning to the game immediately after a head injury will no longer be acceptable. Michael Espinel, a senior and a cornerback for Belen Jesuit Preparatory’s football team, has suffered three concussions in two seasons. In November 2009, Belen was practicing for the state championship semi-finals. Michael received a blow to the head during a drill, momentarily numbing half of his body…