When they went out and ran this morning, early this morning in thefog as the sun came up, they said it was a slow jog and an easy gallop and everything looked fine. In fact,o'neill claimed at that time that his horwas fit and ready to race. But then as the cooling down period started, as you noticed o'neill say, they noticed swelling coming back and said it was not worth it to jeopardize the's future.The UPMC research team evaluated 43 high school athletes with mild concussions, all of whom were symptomfree within 15 minutes of injury, thus classified as having a grade 1 concussion, according to the commonly used American Academy of Neurology concussion severity grading scale. None of the athletes were returned to play prior to completing two postinjury neurocognitive evaluations the first at 36 hours post injury; the second at day 6 post injury. The evaluation tool used was the ImPACT (Immediate PostConcussion Assessment and Cognitive Testing) system, a computerized battery of tes