Carlos Alcaraz suffers historic US Open quarter-final defeat to Ben Shelton

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 was the biggest - and certainly most significant - win of the 23-year-old'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.

It also boosted home hopes of a first American men's singles champion in New York for 23 years.

Shelton was not born when Andy Roddick won the US Open in 2023 - but an American finalist is guaranteed when he and Frances Tiafoe meet in Friday's semi-finals.