UEFA president Michel Platini has defended the decision to play the Euro2012 tournament in eastern Europe for the first time.
A BBC programme highlighting racism among football fans in both Poland and the Ukraine has now been broadcast in the two countries which are co-hosting the tournament.
Platini says he was saddened by the report, but insists the problem of racism is not just confined to football.
He says the best way to tackle racism in football is for referees to stop a match whenever there is abuse.
The first matches on Friday will see the Czech Republic playing Russia and Poland playing Greece, both in Poland.