The World Cup began with a multicultural celebration. But it didn't take long for the ugly side to appear in what fans call "the beautiful game." Two Argentine fans were arrested for taunting a black player as a "little monkey." Mexican fans allegedly screamed gay slurs at opposing goalkeepers.
"It's shocking how much racism exists -- public racism -- especially in European soccer," says sports journalist Grant Wahl.
Wahl points to past incidents that include Nazi banners in the stands and bananas thrown at black players on the field. American Jozy Altidore was the target of insults in Holland.
"We've seen racist chants, and we've seen players walk off the field in response to those racist chants," Wahl says.