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Arsenal's French striker Olivier Giroud (L) attempts a header under pressure from Everton's English defender Phil Jagielka during the English Premier League football match between Arsenal and Everton at the Emirates stadium in London on March 1, 2015. AFP PHOTO / JUSTIN TALLIS 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 45 IMAGES, NO VIDEO EMULATION. NO USE IN BETTING, GAMES OR SINGLE CLUB/LEAGUE/PLAYER PUBLICATIONS. (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)

Arsenal's French striker Olivier Giroud (L) attempts a header under pressure from Everton's English defender Phil Jagielka during the English Premier League football match between Arsenal and Everton at the Emirates stadium in London on March 1, 2015. AFP PHOTO / JUSTIN TALLIS

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 45 IMAGES, NO VIDEO EMULATION. NO USE IN BETTING, GAMES OR SINGLE CLUB/LEAGUE/PLAYER PUBLICATIONS.        (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)