Madison Keys’ 2025 Grand Slam season started in glory — but it ended in heartbreak.

Keys was dumped out of the first round of the US Open, getting shocked by Mexico’s Renata Zarazua 6-7, 7-6, 7-5.

The sixth-seeded Keys, who won the Australian Open in January, won the first set in a dramatic 22-point tiebreak. However, Zarazua took the second in a tiebreak herself and then broke Keys at 6-5 of the third set to clinch the shocking victory.

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<figcaption>Madison Keys shocked at first round of US Open on Aug. 25, 2025. <span class="credit">AP</span></figcaption>

Keys made an astounding 89 unforced errors against 46 winners.

Zarazua will face Diane Parry in the second round.

Madison Keys’ 2025 Grand Slam season started in glory — but it ended in heartbreak.{ai:summary}<p>Keys' 2025 Grand Slam season started in glory, ended in heartbreak with a US Open first-round exit to Renata Zarazua, 6-7, 7-6, 7-5.</p><p>Zarazua won the second in a tiebreak and broke Keys at 6-5 in the third to seal it; Keys had 89 unforced errors to 46 winners. Zarazua advances to face Diane Parry. #sports</p>

Madison Keys shocked in first round of US Open

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