Troubled NFL defensive end Greg Hardy will put his gridiron career on hold to pursue a career in MMA. I'm very focused and excited to start my MMA career. I'm going to do this the right way, I can assure you of that, The Ex-Cowboy has been training for several months and garnered interest from several promotions, despite his lack of experience in the sport. Hardy made headlines in recent years for off-the-field issues stemming from an arrest for cocaine possession and domestic abuse allegations.