Shahar Pe'er was defeated her opener at the Sony Ericsson Open early Sunday, losing to Venus Williams, 6-3, 6-3.
Also Sunday, recent No. 1 Jelena Jankovic lost her third straight match when she was upset by Gisela Dulko of Argentina 6-4, 7-6 (5) at the same tournament.
The final match of the second round ended at 12:20 a.m.
Jankovic, last year's runner-up, blew a 5-2 lead in the second set and another 5-2 lead in the tiebreaker to Dulko.