Concerns over potential racism from fans at Euro 2012 came to the forefront Thursday when black players for the Netherlands heard monkey chants at an open training session, one day before the tournament opens.

According to a report in British newspaper The Guardian, hundreds of the 25,000 people in attendance in Krakow, Poland, targeted players Nigel de Jong and Gregory van der Wiel with monkey noises and loud jeers.

After hearing the chants, the players moved their drills to the other side of the stadium.

“It is a real disgrace especially after getting back from Auschwitz that you are confronted with this,” Dutch captain Mark van Bommel told The Guardian. “We will take it up with UEFA and if it happens at a match we will talk to the referee and ask him to take us off the field.”

(via silas216)