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Australia's coach assistant for scrum, Argentinian hooker Mario Ledesma, attends a training session, on September 15, 2015 at the University of Bath, three days before the opening match of the Rugby World Cup 2015 between England and Fidji at Twickenham stadium. AFP PHOTO / MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)

Australia's coach assistant for scrum, Argentinian hooker Mario Ledesma, attends a training session, on September 15, 2015 at the University of Bath, three days before the opening match of the Rugby World Cup 2015 between England and Fidji at Twickenham stadium. AFP PHOTO / MARTIN BUREAU        (Photo credit should read MARTIN BUREAU/AFP/Getty Images)