J.J. Watt has donated $10,000 to a Houston-area high school football player who is in a coma after suffering a brain injury in a playoff game last week. Grant Milton, a senior at The Woodlands high school, was injured Saturday during a game in Waco and was rushed to a hospital, where he remains in a coma. Watt, the Houston Texans star defensive end, signed his name to the donation on the Go Fund Me page with a note that read: ''If there's anything that I can do to help, please let me know. More...