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Manchester United's Dutch manager Louis van Gaal (C) his players work at a training session at their Carrington facility in Manchester, north west England on October 20, 2015 ahead of their UEFA Champions League football match against CSKA Moscow on October 21. AFP PHOTO / PAUL ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)

Manchester United's Dutch manager Louis van Gaal (C) his players work at a training session at their Carrington facility in Manchester, north west England on October 20, 2015 ahead of their UEFA Champions League football match against CSKA Moscow on October 21. AFP PHOTO / PAUL ELLIS        (Photo credit should read PAUL ELLIS/AFP/Getty Images)