Arsenal's Chilean striker Alexis Sanchez celerbates scoring the opening goal during the English Premier League football match between Arsenal and Chelsea at The Emirates stadium in London, on September 24, 2016. / AFP PHOTO / IKIMAGES / Ian Kington / 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 IAN KINGTON/AFP via Getty Images)