Referee Lee Mason (C) shows the red card to West Bromwich Albion's Argentinian midfielder Claudio Yacob (3rd R) after a tackle on Chelsea's Brazilian-born Spanish striker Diego Costa during the English Premier League football match between Chelsea and West Bromwich Albion at Stamford Bridge in London on November 22, 2014. AFP PHOTO/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 by IAN KINGTON / AFP via Getty Images)
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