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Chelsea's Brazilian-born Spanish striker Diego Costa (C) receives a yellow card during the English Premier League football match between Chelsea and Bournemouth at Stamford Bridge in London on December 5, 2015. AFP PHOTO / 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. / AFP / GLYN KIRK (Photo credit should read GLYN KIRK/AFP via Getty Images)

Chelsea's Brazilian-born Spanish striker Diego Costa (C) receives a yellow card during the English Premier League football match between Chelsea and Bournemouth at Stamford Bridge in London on December 5, 2015.   AFP PHOTO / 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. / AFP / GLYN KIRK        (Photo credit should read GLYN KIRK/AFP via Getty Images)