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South Africa's lock Eben Etzebeth (L) holds off Argentina's scrum half Tomas Cubelli during the bronze medal match of the 2015 Rugby World Cup between South Africa and Argentina at the Olympic Stadium, east London, on October 30, 2015. AFP PHOTO / FRANCK FIFE RESTRICTED TO EDITORIAL USE, NO USE IN LIVE MATCH TRACKING SERVICES, TO BE USED AS NON-SEQUENTIAL STILLS (Photo credit should read FRANCK FIFE/AFP/Getty Images)

South Africa's lock Eben Etzebeth (L) holds off Argentina's scrum half Tomas Cubelli during the bronze medal match of the 2015 Rugby World Cup between South Africa and Argentina at the Olympic Stadium, east London, on October 30, 2015. 
AFP PHOTO / FRANCK FIFE
RESTRICTED TO EDITORIAL USE, NO USE IN LIVE MATCH TRACKING SERVICES, TO BE USED AS NON-SEQUENTIAL STILLS        (Photo credit should read FRANCK FIFE/AFP/Getty Images)