Terrific Tiafoe knocks out Nadal in major US Open upset

It was the first time this year that Nadal, who had been chasing a record-extending 23rd Grand Slam title, has been beaten in a major.

American Frances Tiafoe played the match of his life to beat second seed Rafa Nadal 6-4 4-6 6-4 6-3 in the fourth round of the US Open on Monday.