 Earlier in January, 1921, Conifrey had defeated Mosberg at Madison Square Garden, the shrine of East coast boxing, in a six-round split decision.Mosberg defeated Bostonian Frankie McManus in a fifth-round technical knockout on March 14, 1921, at the Olympia Athletic Club in Philadelphia.Had the bout been allowed to continue by the referee, Mosberg would likely have dropped McManus for the count.