National Football League players run through drills led by Todd Durkin, a professional performance-enhancement coach and personal trainer, during the NFL Star Experience at the Marine Corps Air Station Miramar Sports Complex, July 14. The football players practiced with the Miramar Falcons football team and interacted with service members and families. (U.S. Marine Corps photo by Cpl. Alissa P. Schuning/Released) - National Football League players run through drills led by Todd Durkin, a professional performance-enhancement coach and personal trainer, during the NFL Star Experience at the Marine Corps Air Station Miramar Sports Complex, July 14. The football players practiced with the Miramar Falcons football team and interacted with service members and families. (U.S. Marine Corps photo by Cpl. Alissa P. Schuning/Released)