Mike Rosario, who led Rutgers by scoring 16.2 points per game last season as a freshman, scored a tournament-high 54 points for Puerto Rico in a 90-89 victory over France in the FIBA under-19 world championships.
The United States (4-0), coming off a 85-69 win over Greece, will face Puerto Rico (3-1) Tuesday.
Rosario, a native of New Jersey, was 18-for-29 from the field, including 9 of 13 from long range. He added nine free throws, seven rebounds and four steals. He's averaging 31.2 points for the tournament.
Notables on the U.S. roster include head coach Jamie Dixon (Pittsburgh), who brought along fellow Panthers Ashton Gibbs and Dante Taylor (incoming frosh). Butler's Gordon Hayward and Shelvin Mack made the squad, as did Seth Curry (now with Duke), Howard Thompkins (UGA) and Tyshawn Taylor (Kansas).
Wake Forest swingman Al-Farouq Aminu and UConn's Kemba Walker were late scratches.
The tournament, like the Olympics, was a once-every-four-years event. After the 2007 tournament, however, it began a biannual rotation. The United States is trying to capture the title for the first time since 1991. It won three of the first four tournaments ('79, '83, '91), but only has two runners-up finishes to show for it since ('99 & '07). Serbia defeated the Americans in last year's final, 74-69.