LONDON, ENGLAND - NOVEMBER 26: England's Billy Vunipola departs injured during the International match between England and Argentina at Twickenham Stadium on November 26, 2016 in London, England. (Photo by Ashley Western - CameraSport via Getty Images)
LONDON, ENGLAND - NOVEMBER 26: England's Billy Vunipola departs injured during the International match between England and Argentina at Twickenham Stadium on November 26, 2016 in London, England. (Photo by Ashley Western - CameraSport via Getty Images)
LONDON, ENGLAND - NOVEMBER 26: England's Billy Vunipola departs injured during the International match between England and Argentina at Twickenham Stadium on November 26, 2016 in London, England. (Photo by Ashley Western - CameraSport via Getty Images)
LONDON, ENGLAND - NOVEMBER 26: Billy Vunipola of England is helped by team doctor Nigel Jones after an injury during the Old Mutual Wealth Series match between England and Argentina at Twickenham Stadium on November 26, 2016 in London, England. (Photo by David Rogers - RFU/The RFU Collection via Getty Imagesges)
LONDON, ENGLAND - NOVEMBER 26: Billy Vunipola of England breaks with the ball during the Old Mutual Wealth Series match between England and Argentina at Twickenham Stadium on November 26, 2016 in London, England. (Photo by David Rogers - RFU/The RFU Collection via Getty Imagesges)
