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.

Madison Keys shocked at first round of US Open on Aug. 25, 2025. AP

Keys made an astounding 89 unforced errors against 46 winners.

Zarazua will face Diane Parry in the second round.

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