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Madison Keys, the American tennis star ranked No. 6 in the world, is out after her first-round matchup at the 2025 U.S. Open did not go her way.

Keys was upset by Renata Zarazúa, an unranked competitor from Mexico , 7-6 (12-10), 6-7 (3-7), 7-5, as the crowd was stunned at Arthur Ashe Stadium in New york.

Keys was looking to finish strong after winning the Australian Open earlier this year to collect a Grand Slam title. But Zarazúa was relentless despite losing a hard-fought first set in a thrilling tiebreak.

Keys was able to take the first set following her 12-10 victory in the tiebreak, but Zarazúa forced another in the second and came away with the 7-3 win to keep the match alive.

Then, in the third set, Zarazúa sh

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