Former No. 1 Ana Ivanovic upset Petra Kvitova 6-3, 7-5 in the first reverse singles on Sunday to keep Serbia's hopes alive in the Fed Cup final against defending champion Czech Republic.
The Czechs took a 2-0 lead after the opening singles on Saturday but Ivanovic's victory halved that advantage.
The 12th-ranked Ivanovic jumped to a 4-1 lead in the second set and converted her third match point with a forehand winner.
''It was amazing feeling,'' said Ivanovic who improved to 4-1 against Kvitova and to 13-6 in Fed Cup singles. ''It was a tough point and I was really going for it. I knew that today I was going to play better because I had experience from yesterday.''
Kvitova lost for the first time after recording 11 consecutive Fed Cup singles wins and led the Czechs to victory over Russia in the final last year.
Another former top-ranked player, Jelena Jankovic of Serbia, faces Lucie Safarova in the second reverse singles before the final doubles.
The Czechs are still one win ...