This Cleveland, Ohio native has made Charlotte his home to become one of the foremost ring doctors in the country. Over the years he has become the North Carolina Boxing Association Medical Chairman, serving on the W.B.A. Board, Association of Boxing Commissions, American Association Ringside Physicians, and current member of the U.S. Olympic Committee of Sports Medicine.
Dr. Estwanik has also served as team physician for USA Boxing in such rivalries as USA vs. Soviet Union, USA vs. Canada, Ireland, England, France, and Thailand.
Dr. Estwanik also designed the gloves used in Mixed Martial Arts as well as authored a number of books on Sports Medicine. Dr. Estwanik now resides in Cornelius with his wife Janice and three children, where he enjoys photography, weight training and pistol shooting.