Rafa Marquez, Mexico
The ageless Mexican captain earned the ire of the United States fans way back in 2002 when he was shown a red card for head butting Cobi Jones near the end of his country's 2-0 loss in the Round of 16. More than a decade – and another red card for going in studs up on goalie Tim Howard during a qualifier – later, Marquez remains public enemy No. 1 in the eyes of the loyal American supporters. He is popular, to put it lightly, at home.