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VILLARREAL, SPAIN - AUGUST 17: Official balls before the UEFA Champions League play-off first leg match between Villarreal CF and AS Monaco at El Madrigal on August 17, 2016 in Villarreal, Spain. (Photo by Manuel Queimadelos Alonso/Getty Images)

VILLARREAL, SPAIN - AUGUST 17:  Official balls before the UEFA Champions League play-off first leg match between Villarreal CF and AS Monaco at El Madrigal on August 17, 2016 in Villarreal, Spain.  (Photo by Manuel Queimadelos Alonso/Getty Images)