Frustrated World No. 1 Carlos Alcaraz was knocked out of the ATP Toronto Masters 6-3, 4-6, 6-3 on Friday as American Tommy Paul ended the Spaniard’s 14-match winning streak. 

Top-seeded Alcaraz was unable to escape the poor form that has plagued him all week as he prepares for a US Open title defence starting in just over two weeks. Paul, ranked 14th, now faces a semi-final against sixth seed Jannik Sinner, who defeated French showman Gael Monfils 6-4, 4-6, 6-3.