US Open 2017: Juan Martin del Potro beats Roger Federer to make semi-finals

Juan Martin del Potro celebrates beating Roger Federer
Juan Martin del Potro's most recent Grand Slam semi-final was at Wimbledon in 2013
US Open
Venue: Flushing Meadows, New York Dates: 28 Aug-10 Sept
BBC coverage: Live radio and text commentary on selected matches every day.

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.

"I think I played my best match of the tournament," said the Argentine.

"I played everything well. My serve was good, I hit my forehands as hard as I possibly could.

"This is my home court too. The fans make me feel happy every time I play here. I hope against Rafa the crowd will be cheering for me again."

'I can't believe I am back'

Juan Martin del Potro
Juan Martin hit 48 winners against Federer with 32 unforced errors

The Del Potro forehand is among the biggest weapons in the game but his backhand, which has been hampered in recent years after four wrist surgeries, held up superbly.

After the pair split the first two sets with a break apiece, the match turned on a gripping third-set tie-break in which Federer saw four set points slip by.

Del Potro would not be so profligate, hammering a magnificent backhand on his first chance to clinch the set, drawing a huge roar from the Argentine and his supporters high in the stands.

A desperate Federer smash into the bottom of the net drew gasps from the crowd as he offered up a break point at 2-2 in the fourth, which Del Potro snapped up with another blistering backhand return.

Federer's evening ended with him taking evasive action at the net from a massive Del Potro forehand, and then swinging a wild volley way over the baseline when threatening to break back.

It was Del Potro's night and, four years after his last Grand Slam semi-final, he closed out the match after two hours and 51 minutes to set up a chance at a second US Open crown.

"I don't know what the turning point was, maybe I got lucky," he said. "I can't believe I am back after all my injuries and surgeries."

'I ran into a guy who was better'

Roger Federer
Five-time champion Roger Federer has not won the US Open since 2008

The final match statistics were not bad for Federer but he was unexpectedly hesitant, making errors at key moments as he lost his first Grand Slam match of the year.

Having picked up a back injury in the build-up to the US Open, Federer then had to come through two five-set matches in the first two rounds.

"I had struggled too much throughout the tournament to think too far ahead," he said.

"In some ways I'm actually happy I made the quarters, so I'm not disappointed, because it's been a good run this year already.

"Unfortunately I ran into a guy who was better than me today."

Friday's other semi-final will see South Africa's Kevin Anderson take on Spain's Pablo Carreno Busta.


BBC tennis correspondent Russell Fuller

Federer says he hasn't felt well enough in either body or mind over the past fortnight, his confidence affected by the back injury which hindered his preparation.

He looked an unlikely champion when labouring to five-set victories in the opening two rounds and when faced by a competitor like Del Potro he was made to look very uncomfortable and very uncertain.

There were some spectacular misses by Federer, who too often presented himself at the net and invited Del Potro to pass him with his fearsome forehand. The Argentine took Federer up on his offer repeatedly, and served consistently well throughout the match.

And so Federer's attempt to win three Grand Slams in a year for the first time in a decade has ended at the quarter-final stage.

The ever popular Del Potro, who has had wrist surgery four times since winning the title here in 2009, is one win away from a return to the final of his favourite Grand Slam.

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