Which mixed martial artist was represented by Marc Roberts?
Marc Roberts (sports agent): Marc Roberts (born September 20, 1959, Newark, New Jersey) was a Division I basketball player at American University in Washington, D.C., before starting a career as a sports agent. Marc Roberts (sports agent):  He has represented NFL players such as Antonio Freeman, Tyronne Drakeford, O.J. McDuffie, Jerry Porter, and Tyrone Wheatley, NBA players Bobby Jackson, Johnny Newman, and Derek Anderson, and World Champion boxers "Merciless" Ray Mercer, Shannon Briggs, Tracy Harris Patterson, Danell Nicholson, Charles Murray and Alex Trujillo.
i don't know