Saturday is for college stars. Sunday is for NFL pros. But the future of football is played under the lights each Friday night in high schools all across the country. If you want to be the best, you have to train like the best—even if that’s for your flag football team. So to help you out, we got up with NFL trainer Todd Durkin—who also heads up the Under Armour Performance Training Council—to dish on 9 NFL-approved drills you can add to your daily workout today.