SAN JUAN, Puerto Rico -- Justin Jackson scored 26 points, Langston Galloway added 18 and the U.S. men's basketball team took another step toward qualifying for next year's World Cup by topping Puerto Rico 83-75 on Friday night.
John Jenkins scored 13 for the Americans, who improved to 4-1 in World Cup qualifying from the FIBA Americas region.
The U.S. closes first-round qualifying play Monday at Cuba. The Americans have already clinched a spot in the second round, as has Puerto Rico.
Jordan Bell sent the U.S. into the half with a 42-37 lead by banking in a 3-pointer that just beat the buzzer, then had words for the Puerto Rico crowd as he left the floor for intermission.
That seemed to fire up the Americans, who came out flying in the third quarter.
Galloway hit back-to-back 3s for a nine-point lead early in the quarter, and then Jackson took over. He scored nine consecutive U.S. points, that run ending when Cook connected on a deep 3-pointer from the left wing with 2:49 left for a 63-46 lead.
Puerto Rico chipped away, but the Americans still carried a 15-point lead into the final quarter after another beat-the-clock score -- Eric Mika's tip-in as time expired in the third for a 66-51 edge.
The Americans kept the lead the rest of the way. Alvarado made a 3-pointer with 14 seconds left to get Puerto Rico within 81-75, but the outcome was already decided.
The records from the first round carry over to the second round, composed of six more games starting in August. Only Canada (5-0) and Brazil (5-0), who are playing in other first-round groups, have better records than the U.S.
The Americas Region will see 12 teams make the second round of qualifying, and of those, seven will play in the World Cup -- the main qualifier for the 2024 Paris Olympics.
CANADA 95, DOMINICAN REPUBLIC 75
At Hamilton, Ontario, Shai Gilgeous-Alexander scored 15 of his 32 points in the third quarter to lead Canada to an easy win.
Victor Liz scored 12 points for the Dominican Republic.