Thursday's Heads Up Football news:
Former Titans safety Blaine Bishop is serving as an Ambassador in the Nashville area for USA Football's Heads Up Program, which is trying to take the head out of the game.
- Pop Warner reported a 9.5 percent drop in participation this season, according to ESPN. Pop Warner's chief medical officer, Dr. Julian Bailes, cited fear of head injuries as the main reason.
-- Bill Bradley, contributing editor