Argentina’s Juan Martin del Potro stunned Roger Federer in four sets to reach the US Open semi-finals.
The 24th seed won 7-5 3-6 7-6 (10-8) 6-4 to reach the last four, thrilling his large contingent of supporters in New York.
He goes on to face top seed Rafael Nadal, who earlier beat Russian teenager Andrey Rublev.
Del Potro’s victory means Federer and Nadal will end another year having never played each other at the US Open.
Top seed Nadal is now also guaranteed to keep hold of the number one ranking ahead of Federer.
It is the sixth time the pair have been one match from meeting at Flushing Meadows, and their potential semi-final clash had dominated headlines throughout the tournament.
However, an out-of-sorts Federer was no match for Del Potro, who returned 48 hours after his epic five-set win over Dominic Thiem to produce another thrilling victory.
“I honestly was only thinking about tonight,” said Federer, 36.
“My head didn’t even wander during the match. I knew it was going to be a tough one.”
Del Potro, 28, beat Federer to win his only Grand Slam title in New York in 2009, and eight years later he delivered another blow to the 36-year-old on Arthur Ashe Stadium.
Culled from BBC Sport
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