Anderson Duarte’s strike from the edge of the penalty area put Uruguay through to the Under-20 World Cup quarterfinals with a 1-0 win against Gambia on Thursday.
Uruguay plays the United States in the last eight on Sunday.
Both teams lost players to red cards in the hard-fought match in Santiago del Estero. Mansour Mbye’s ejection left Gambia a man down from the 17th minute, while Uruguay’s Luciano Rodriguez was sent off shortly before the break.
Uruguay wasted several opportunities to double its lead against a tired Gambian team that had few chances to equalize after Duarte scored in the 65th with a low left-footed shot into the corner.
The winner of Uruguay vs. U.S. will play Brazil or Israel in the semifinals.
Ecuador plays South Korea later Thursday for a place in the quarterfinals.