Sania Mirza was dumped in the first round of the Ponte Vedra Beach championships in Miami on Monday by seventh seed Alona Bondarenko of Ukraine.

The Indian ace, who has slipped to 100 in the singles rankings, lost 4-6, 3-6, even as 14-year-old American Madison Keys won on her WTA Tour debut, scoring a 7-5, 6-4 first round win over 21-year-old Russian Alla Kudryavtseva.

Keys fought back from 2-5 down in the opening set to upset Kudryavtseva, ranked 81 in the world, and set up a possible second round meeting with Russian top seed Nadia Petrova.

In other matches of the day, third seed Dominika Cibulkova of Slovakia beat Edina Gallovits of Romania 6-2, 6-2, Patricia Mayr of Austria) beat Japan's Ayumi Morita 6-3, 2-6, 6-3 and Kateryna Bondarenko of Ukraine accounted for Barbora Zahlavova Strycova of the Czech Republic 7-6(2), 6-2.