Australian Samantha Stosur moved into the third round of the ATP-WTA Madrid Masters on Tuesday, defeating Daniela Hantuchova for the second time in a fortnight on red clay.
The fifth seed came through 7-6 (7-1), 7-5 winner in a second round match which was almost interrupted by a huge thunderclap in the skies over the Caja Magica.
The noise caught Hantuchova off-guard, with the flinching Slovak asking to stop play.
But with Stosur closing in on victory, the match went ahead, with the French Open finalist advancing on her second match point in just under two hours of play moments later.
Czech 16th seed Petra Kvitova also advanced 6-3, 6-3 past South African Chanelle Scheepers as Bethanie Mattek-Sands hammered fellow American Vania King 6-0, 6-2.
In men's play, German Florian Mayer, losing finalist on Sunday in Munich to Nikolay Davydenko, upset Serb 16th seed Viktor Troicki 4-6, 7-5, 6-4 in their first round tie while Kevin Anderson of South Africa defeated Belgian Olivier Rochus 6-2, 6-4.