Answer
Abreu participated in two World Cups with Uruguay, in 2002 and 2010. He made his World Cup debut in 2002, appearing in all three of Uruguay's group stage matches. In 2010, he was again selected for the Uruguayan squad and played in four matches, including the semi-final against the Netherlands. Abreu's performances in both tournaments helped Uruguay to reach the Round of 16 and the semi-finals, respectively.