Osaka dumps out Gauff to reach US Open quarter-finals

Former champion overwhelms opponent to win in just 64 minutes

Naomi Osaka celebrates after winning a match against Coco Gauff during the fourth round of the US Open tennis championships in New York. Picture: Kirsty Wigglesworth/AP

Naomi Osaka produced her biggest grand slam result for more than four years to knock out Coco Gauff in the fourth round of the US Open.

This was the most anticipated match of the tournament so far but it lasted only 64 minutes, with Osaka racing to a 6-3 6-2 victory on Arthur Ashe Stadium.