After almost coming unstuck against Laura Robson on Monday, Daniela Hantuchova produced a shock of her own by defeating Zheng Jie in the second round of Wimbledon.
The Slovakian edged past her Chinese opponent 6-3 7-5 in a back-and forth game that included eight breaks of serve.
Zheng, who reached the semi-finals in 2008, continued a poor run of form that saw her suffer early exits at the French Open, Birmingham and Eastbourne.
Hantuchova was on the back foot early as she was broken in the first game but managed to regain her composure and hit-back to level at 3-3.
Unloading some brilliantly-hit ground-strokes, Hantuchova broke again and showed no nerves as she served out the set.
The world number 32 used her agility and athletic prowess to good effect, preventing the Chinese player from finding her rhythm.
Zheng dropped serve again early in a second set which saw several breaks of serve. At 4-5, Zheng looked down and out but some unforced errors from Hantuchova allowed her back in.
But even then Zheng couldn't hold serve as Hantuchova broke again before serving out the match to set up a third round clash against Japan's Ai Sugiyama.
Zheng admitted after the match that nerves played a part in her defeat.
"You can see television cameras at all my matches here. You can watch every one of my matches on TV in China so sometimes I am more nervous because I want to win and show my best," she said.
"Of course the pressure can affect you because you know the match is tough and she is a good player. She has been injured and her ranking has gone down but she is still a good player."