Jack Pfefer was an American professional wrestling promoter during the early-to-mid twentieth century. He pioneered an earlier form of sports entertainment, as he was one of the first promoters to visualize the pro wrestling business in the mold of theater. However, he developed an infamous reputation when he exposed the sport's inner secrets to the mainstream press in a spiteful attack that nearly destroyed the entire industry.

Professional wrestling is a form of athletic theater that combines mock combat with drama, under the premise that the performers are competitive wrestlers. Although it entails elements of sports wrestling and martial arts, including genuine displays of athleticism and physicality before a live audience, professional wrestling is distinguished by its scripted outcomes and emphasis on entertainment and showmanship. The staged nature of matches is an open secret, with both wrestlers and spectators nonetheless maintaining the pretense that performances are bona fide competitions; this is likened to the suspension of disbelief employed when engaging with fiction.