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Chelsea's Spanish midfielder Cesc Fabregas (L) goes down in a challenge with Peterborough United's Welsh defender Andrew Hughes (R) during the English FA Cup third round football match between Chelsea and Peterborough at Stamford Bridge in London on January 8, 2017. / 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/Getty Images)

Chelsea's Spanish midfielder Cesc Fabregas (L) goes down in a challenge with Peterborough United's Welsh defender Andrew Hughes (R) during the English FA Cup third round football match between Chelsea and Peterborough at Stamford Bridge in London on January 8, 2017. / 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/Getty Images)