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GUILDFORD, ENGLAND - AUGUST 18: Adam Jones of Harlequins poses for a portrait during a photocall held at Surrey Sports Park on August 18, 2015 in Guildford, England. (Photo by Dan Mullan/Getty Images)

GUILDFORD, ENGLAND - AUGUST 18:  Adam Jones of Harlequins poses for a portrait during a photocall held at Surrey Sports Park on August 18, 2015 in Guildford, England.  (Photo by Dan Mullan/Getty Images)

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EDINBURGH, SCOTLAND - MARCH 09: Adam Jones of Wales celebrates at the end of the RBS Six Nations match between Scotland and Wales at Murrayfield Stadium on March 9, 2013 in Edinburgh, Scotland. (Photo by Stu Forster/Getty Images)

EDINBURGH, SCOTLAND - MARCH 09:  Adam Jones of Wales celebrates at the end of the RBS Six Nations match between Scotland and Wales at Murrayfield Stadium on March 9, 2013 in Edinburgh, Scotland.  (Photo by Stu Forster/Getty Images)

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SWANSEA, WALES - OCTOBER 12: Blues player Adam Jones looks on during the Guinness Pro 12 match between Ospreys and Cardiff Blues at Liberty Stadium on October 12, 2014 in Swansea, United Kingdom. (Photo by Stu Forster/Getty Images)

SWANSEA, WALES - OCTOBER 12:  Blues player Adam Jones looks on during the Guinness Pro 12 match between Ospreys and Cardiff Blues at Liberty Stadium on October 12, 2014 in Swansea, United Kingdom.  (Photo by Stu Forster/Getty Images)

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EDINBURGH, SCOTLAND - MARCH 09: Adam Jones of Wales lines up for the anthems prior to the RBS Six Nations match between Scotland and Wales at Murrayfield Stadium on March 9, 2013 in Edinburgh, Scotland. (Photo by Stu Forster/Getty Images)

EDINBURGH, SCOTLAND - MARCH 09:  Adam Jones of Wales lines up for the anthems prior to the RBS Six Nations match between Scotland and Wales at Murrayfield Stadium on March 9, 2013 in Edinburgh, Scotland.  (Photo by Stu Forster/Getty Images)

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LONDON - APRIL 12: (L to R) assistant coach Jonathan Humphries, Adam Jones and Marty Holah pose with the trophy following their team's victory during the EDF Energy Cup Final between Leicester Tigers and the Ospreys at Twickenham on April 12, 2008 in London, England. (Photo by David Rogers/Getty Images)

LONDON - APRIL 12:  (L to R) assistant coach Jonathan Humphries, Adam Jones and Marty Holah pose with the trophy following their team's victory during the EDF Energy Cup Final between Leicester Tigers and the Ospreys at Twickenham on April 12, 2008 in London, England.  (Photo by David Rogers/Getty Images)