sentences:  His reluctance to co-operate with promoters isolated him from the wrestling mainstream for much of his career.One important wrestling figure with whom Pesek did agree to work was Ed Lewis, for whom he became a "policeman" to ward off the so-called "trustbusters", outlaw wrestlers who posed threats to promotions and their champions by refusing to co-operate (fix matches) during matches.On November 14, 1921, Pesek squared off against one of the most prominent trustbusters, Croatian-born wrestler Marin Plestina at Madison Square Garden.