Carlsbad, California: Jelena Jankovic overcame problems with her serve to claim a 2-6, 6-4, 6-4 win over Melinda Czink in the second round of the Mercury Insurance Open on Thursday.
The third-seeded Serb had a first-round bye and the former No. 1 player struggled throughout the match with her serve before closing it out in the third set.
"I was in trouble," said Jankovic, who was successful on only 55 percent of her first serves. "It wasn't easy. I was pushed. I had to change something."