i'm your host bob rucker, friday night football, under the lights it's a tradition on many high school campuses and so is the crack of the baseball bat. as we report, recent injuries are drawing attention at no point risks to high school student -- are drawing attention to the risks of high school students. >> torn ligaments and brain injuries, high school sports are becoming more and more popular and one of the most dangerous injury is the concussion. it can cause dizziness and loss of appetite and memory loss and the athlete can be knocked unconscience. young athletes and teens can come back too soon and become more apt to have a more severe reinjury. where do the head injuries occur? you guessed it the football field. on thanksgiving day 2009, matthew blade nearly died after suffering this devastating hit. the 15-year-old was able to get up right after the hit but collapsed moments later. he had brain swelling and a blood clot the road to recovery is a tough one. >> in terms of brain recovery, we know that most of it happens within that 18 month period. but there's no doubt that res