Shelton beats Alcaraz in latest-ever US Open finish to reach semis

Carlos Alcaraz's US Open title defence came to an end in a dramatic five-set quarter-final loss to Ben Shelton that ended at 03:34 local time - the latest finish in the tournament's history.

A large crowd remained captivated deep into the night as a modern classic unfolded over an unpredictable four hours and 28 minutes on Arthur Ashe Stadium.

The match did not begin until about 11pm in New York, after the start of the night session was delayed by Tuesday's earlier matches.

At its conclusion, eighth seed Shelton basked in a standing ovation from a delirious audience after completing a 6-7 (5-7) 6-1 6-3 1-6 7-6 (10-7) victory that will live long in the memory of all those still present.

"It is incredible, I always say that this is the greatest stadium in the world," the 23-year-old said.

"I'm just hoping my best friend and sister don't have to be at work at 6am. It would be huge from their employers to let them have the day off."

This was the biggest - and certainly most significant - win of Shelton's career.

Shelton had not beaten a top-three player in 17 attempts, and had lost each of his three previous matches against Spain's Alcaraz.