Pervak can't handle the heat
Ksenia Pervak was carried off court in Azerbaijan
Number one seed Ksenia Pervak suffered an early exit from the Baku Cup in Azerbaijan after retiring from her first-round match against Julia Cohen.
Pervak, runner-up to Vera Zvonareva last year, was carried off court on a stretcher after collapsing from heat exhaustion in the middle of the final set.
The Kazakh had won the first set 6-4 but Cohen won the second 6-3 and was 3-2 up in the decider when Pervak was assisted off court.
She was not the only seed to suffer an early exit, with Akgul Amanmuradova and Eva Birnerova also going down in straight sets.
Seventh seed Amanmuradova was defeated 6-3 7-6 (14-12) by Olga Puchkova while Birnerova, seeded eighth, was trounced 6-1 6-1 by Magdalena Rybarikova.
However, second seed Alexandra Panova survived a tough encounter before seeing off qualifier Sacha Jones 7-5 7-6 (9-7).
Fifth and sixth seeds Bojana Jovanovski and Nina Bratchikova also progressed to the next round after seeing off Lesia Tsurenko and Patricia Mayr-Achleitner respectively.
There were also wins for Alberta Brianti, Laura Pous-Tio, Sandra Zaniewska, Estrella Cabeza Candela and Marta Domachowska.