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Poland's midfielder Bartosz Kapustka (R) and Slovakia's defender Martin Valjent vie for the ball during the UEFA U-21 European Championship Group A football match Poland v Slovakia in Lublin, Poland on June 16, 2017. / AFP PHOTO / JANEK SKARZYNSKI (Photo credit should read JANEK SKARZYNSKI/AFP/Getty Images)

Poland's midfielder Bartosz Kapustka (R) and Slovakia's defender Martin Valjent vie for the ball during the UEFA U-21 European Championship Group A football match Poland v Slovakia in Lublin, Poland on June 16, 2017.  / AFP PHOTO / JANEK SKARZYNSKI        (Photo credit should read JANEK SKARZYNSKI/AFP/Getty Images)