During rehearsals,
Yvon Barrette was seriously injured when a puck hit him in the knee. Barrette was worried that he would be replaced with another actor. But
George Roy Hill postponed shooting scenes featuring Barrette so that he could return to the film when he recovered. Barrette returned to filming 10 days later. But to prevent any further injury, Barrette was doubled by
Ronald L. Docken during the hocking playing scenes.
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