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Referee Roger East (top) checks on Newcastle United's Serbian striker Aleksandar Mitrovic who reacts on the pitch with a knock during the English Premier League football match between Chelsea and Newcastle United at Stamford Bridge in London on February 13, 2016. / AFP / GLYN KIRK / 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 GLYN KIRK/AFP via Getty Images)

Referee Roger East (top) checks on Newcastle United's Serbian striker Aleksandar Mitrovic who reacts on the pitch with a knock during the English Premier League football match between Chelsea and Newcastle United at Stamford Bridge in London on February 13, 2016. / AFP / GLYN KIRK / 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 GLYN KIRK/AFP via Getty Images)
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AFP GLYN KIRK