Carlos Alcaraz powered into the US Open semi-finals to set up a potential showdown with Novak Djokovic on Tuesday as reigning women's champion Aryna Sabalenka was handed a walkover into the last four.

Alcaraz needed just one hour and 56 minutes to seal a convincing 6-4, 6-2, 6-4 defeat of Czech 20th seed Jiri Lehecka on the Arthur Ashe Stadium court.

The Spanish second seed could now face a blockbuster semi-final against 24-time Grand Slam champion Djokovic, who takes on American fourth seed Taylor Fritz in Tuesday's other quarter-final.

Alcaraz could reclaim the world number one ranking with a victorious campaign in New York, a fact he is trying not to dwell on.

"Every time I step onto the court I try not to think about it," he said. "If I think about the number one spot too much I th

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