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BIRMINGHAM, ENGLAND - SEPTEMBER 26: Paul Perez of Samoa is tackled by Jean De Villiers (bottom) of South Africa during the 2015 Rugby World Cup Pool B match between South Africa and Samoa at Villa Park on September 26, 2015 in Birmingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)

BIRMINGHAM, ENGLAND - SEPTEMBER 26: Paul Perez of Samoa is tackled by Jean De Villiers (bottom) of South Africa during the 2015 Rugby World Cup Pool B match between South Africa and Samoa at Villa Park on September 26, 2015 in Birmingham, United Kingdom.  (Photo by Laurence Griffiths/Getty Images)