[caption id="attachment_5889" align="aligncenter" width="580"]Sania Mirza-Martina Hingis brings an end to their partnership. File Pic Sania Mirza-Martina Hingis lose in Semis of WTA Finals. File Pic[/caption] Internet Desk: Former WTA Finals champion Sania Mirza and Martina Hingis failed to secure their title in Singapore after losing in the semi-finals on Saturday. The Indo-Swiss pair lost to fourth seeds Ekaterina Makarova and Elena Vesnina by 6-3, 2-6, 6-10 that lasted for an hour and 30 minutes. Makarova and Vesnina will face Bethanie Mattek-Sands and Lucie Safarova in the final. Bethanie and Lucie defeated top seeds Caroline Garcia and Kristina Mladenovic by 6-3, 7-5 in the other semifinal. Sania and Martina looked comfortable in the first set, winning it 6-3 but the Russian duo came back strongly in the second to take the set 6-2. With the match going into super tie-break, the No. 2 seeds conceded a 4-7 lead to the Russians. Despite bringing the arrears down to 6-8, Sania and Martina left themselves too much to do and lost the super tie-break 6-10. "We let them get too much ahead in the second set," a disappointed Sania said. "Even in the first set, we weren't holding serves, we were only breaking. We were returning very well of course, but once the momentum changed it became tough. They are a good team, they know how to play." Vesnina and Makarova had never beaten Sania and Hingis before. "I think holding serve in the first game of the second set, it was a long game that really helped us, it changed things," Vesnina said. "It's different when you are leading. After that we were really confident." This was Sania and Martina's first competition since they had split following an early exit at Montreal in last July.