Frances Tiafoe produced one of the biggest upsets at the U.S. Open after stunning 22-times Grand Slam champion Rafa Nadal in the fourth round, while Spanish teenager Carlos Alcaraz battled past Marin Cilic in a late-night thriller on Monday.
Home hope Tiafoe, 24, pulled off a 6–4, 4–6, 6–4, 6–3 victory to hand Nadal his first Grand Slam loss this year after the Spaniard withdrew from his Wimbledon semifinal with an abdominal injury.
