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LONDON, ENGLAND - JANUARY 11: (L) Laurent Koscielny celebrates scoring the 1st Arsenal goal with (L-R) Olivier GIroud, Per Mertesacker, Santi Cazorla, Francis Coquelin, Alexis Sanchez and Nacho Monreal during the Barclays Premier League match between Arsenal and Stoke City at Emirates Stadium on January 11, 2015 in London, England. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

LONDON, ENGLAND - JANUARY 11: (L) Laurent Koscielny celebrates scoring the 1st Arsenal goal with (L-R) Olivier GIroud, Per Mertesacker, Santi Cazorla, Francis Coquelin, Alexis Sanchez and Nacho Monreal during the Barclays Premier League match between Arsenal and Stoke City at Emirates Stadium on January 11, 2015 in London, England. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)