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'Sad end': Teen suffers heartbreak after sparkling US Open run

Teen Carlos Alcaraz (pictured left) getting treatment and (pictured right) being embraced by Felix Auger-Aliassime after retiring at the US Open.
Teen Carlos Alcaraz (pictured left) retired injured in his quarter-final clash with Felix Auger-Aliassime (pictured right) at the US Open. (Getty Images)

Spanish teen sensation Carlos Alcaraz has retired hurt against Felix Auger-Aliassime in the US Open men's quarter-final clash.

Alcaraz was one of the teen trio - with Leylah Fernandez and Emma Raducanu - to make waves at the US Open this year.

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The Spaniard has endured two tough five-setters in a row before coming up against the in-form Auger-Aliassime.

And the 21-year-old Canadian immediately showed it wasn't going to be an easy night for the 18-year-old Spaniard after taking the first set 6-3.

But, the Spaniard appeared to slow down in the second and at 3-1 down, Alcaraz called it quits due to an apparent abdominal injury.

Auger-Aliassime showed class at the net as he embraced the disappointed Spaniard, who became the youngest men's quarter-finalist since Michael Chang in 1990 (and the youngest in the Open Era).

Fans were also left shattered for the teen who was unable to continue.

Auger-Aliassime, who reached the quarter-final of Wimbledon earlier this year, will now face his biggest test in the form of Russian Daniil Medvedev in the semi-final.

Layleh Fernandez creates US Open history

Earlier, Fernandez was able to go one-step further and reach the semi-final of the US Open grand slam at just 19 years old.

Fernandez, who only turned 19 on Monday, dealt with remarkable pressure in her first ever slam quarter-final to defeat 5th seed Elina Svitolina 6-3, 3-6, 7-6 with the match lasting three hours.

With the win, Fernandez became the youngest woman to defeat two WTA Top-5 players at the same Grand Slam since Serena Williams in 1999.

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