The American Athletic Conference, home to the University of Central Florida, will require all its schools to test football players for COVID-19 at least 72 hours before competition.The announcement Thursday by the American comes ahead of the expected release of recommendations for testing before games from the NCAA.The Power Five conferences — ACC, Big Ten, Big 12, Pac-12 and SEC — have been working toward a minimum standard for testing throughout major college football.The Big Ten and Pac-12 announced last week that they would play only conference games in football and other sports this fall to help minimize potential disruptions caused by COVID-19.The Big East joined those leagues Thursday by going conference-only for the fall season,.