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LONDON, ENGLAND - SEPTEMBER 15: Leigh Halfpenny talks to the media at Royal Garden Hotel on September 15, 2015 in London, England. (Photo by Christopher Lee/Getty Images for Dove)

LONDON, ENGLAND - SEPTEMBER 15:  Leigh Halfpenny talks to the media at Royal Garden Hotel on September 15, 2015 in London, England.  (Photo by Christopher Lee/Getty Images for Dove)

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Toulon's Leigh Halfpenny runs during a training session at Twickenham Stadium, south west of London on May 1, 2015 the eve of the European Rugby Champions Cup final between Clermont and Toulon. Toulon's bid to be crowned kings of Europe for an unprecedented third successive season will see their star-studded side up against familiar foes when they take on French rivals Clermont in Saturday's final at Twickenham. AFP PHOTO / ADRIAN DENNIS (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)

Toulon's Leigh Halfpenny runs during a training session at Twickenham Stadium, south west of London on May 1, 2015 the eve of the European Rugby Champions Cup final between Clermont and Toulon.  Toulon's bid to be crowned kings of Europe for an unprecedented third successive season will see their star-studded side up against familiar foes when they take on French rivals Clermont in Saturday's final at Twickenham. AFP PHOTO / ADRIAN DENNIS        (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)

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LONDON, ENGLAND - MAY 02: Leigh Halfpenny of Toulon celebrates with the trophy during the European Rugby Champions Cup Final match between ASM Clermont Auvergne and RC Toulon at Twickenham Stadium on May 2, 2015 in London, England. (Photo by Jamie McDonald/Getty Images)

LONDON, ENGLAND - MAY 02:  Leigh Halfpenny of Toulon celebrates with the trophy during the European Rugby Champions Cup Final match between ASM Clermont Auvergne and RC Toulon at Twickenham Stadium on May 2, 2015 in London, England.  (Photo by Jamie McDonald/Getty Images)

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CARDIFF, WALES - SEPTEMBER 05: Wales player Leigh Halfpenny is stretchered off during the International match between Wales and Ireland at Millennium Stadium on September 5, 2015 in Cardiff, Wales. (Photo by Stu Forster/Getty Images)

CARDIFF, WALES - SEPTEMBER 05:  Wales player Leigh Halfpenny is stretchered off  during the International match between Wales and Ireland at Millennium Stadium on September 5, 2015 in Cardiff, Wales.  (Photo by Stu Forster/Getty Images)

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LONDON, ENGLAND - MARCH 09: Leigh Halfpenny of Wales kicks at goal during the RBS Six Nations match between England and Wales at Twickenham Stadium on March 9, 2014 in London, England. (Photo by Stu Forster/Getty Images)

LONDON, ENGLAND - MARCH 09:  Leigh Halfpenny of Wales kicks at goal during the RBS Six Nations match between England and Wales at Twickenham Stadium on March 9, 2014 in London, England.  (Photo by Stu Forster/Getty Images)