December 21, 2018 How They Train: Conditioning Methods of World Champion Boxer Evander Holyfield by Dr. Fred Hatfield
June 6, 2018May 14, 2018 Dr. Ken Leistner, ‘Hip and Thigh Power’, The Steel Tip, Vol. 1, No. 12 (1985).
July 25, 2017July 24, 2017 How They Train: Conditioning Methods of World Champion Boxer Evander Holyfield by Dr. Fred Hatfield