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Arsenal's German defender Per Mertesacker and Arsenal's Czech goalkeeper Petr Cech (R) applaud supporters after the English Premier League football match between Swansea City and Arsenal at The Liberty Stadium in Swansea, south Wales on October 31, 2015. Arsenal won the game 3-0. AFP PHOTO / GEOFF CADDICK RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or 'live' services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. (Photo credit should read GEOFF CADDICK/AFP/Getty Images)

Arsenal's German defender Per Mertesacker and Arsenal's Czech goalkeeper Petr Cech (R) applaud supporters after the English Premier League football match between Swansea City and Arsenal at The Liberty Stadium in Swansea, south Wales on October 31, 2015. Arsenal won the game 3-0. AFP PHOTO / GEOFF CADDICK

RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or 'live' services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications.        (Photo credit should read GEOFF CADDICK/AFP/Getty Images)