BY SCOTT WRIGHTWelcome to Week Zero. Wait, what? Yes, the traditional opening week of the high school football season is still a week away, but thanks to a new rule adopted by the Oklahoma Secondary School Activities Association, we've got real football kicking off Friday night. Week Zero is an 11th week in which teams can schedule one of their 10 regular-season football games by sacrificing their second preseason scrimmage, which most teams are holding this week. But Week Zero is quickly gaining popularity.Read more on NewsOK.com