American Taylor Fritz shocked world number one Carlos Alcaraz 6-3, 6-2 as Team World won all three singles matches at the Laver Cup on Saturday to power into the lead in the global tennis event.
Fritz, ranked fifth in the world, notched his first victory over the Spanish superstar after three previous defeats, including in the semi-finals at Wimbledon this year.
Added to victories for Australian Alex De Minaur and Argentina's Francisco Cerundolo, it gave captain Andre Agassi's team a 7-3 lead over Team Europe with the night's doubles still to come.
The first team to 13 points will lift the cup on Sunday.
Two weeks after beating Italian Jannik Sinner in the US Open final to claim a sixth Grand Slam crown and return to number one, Alcaraz was not at his sharpest.
Fritz took full advanta