Sania and Martina, top seeds here, took just 90 minutes to get past the challenge of fourth-seeded Timea Babos of Hungary and Kristina Mladenovic of France 6-4 7-5 in their final round-robin match and finish on top of their group.
By virtue of this win, Sania and Martina had avenged their loss to the same pair the last time they played in Rome this year.
Saina and Martina lifted their game just at the right time and made full use of the only two breaks of the match they got.
The Indo-Swiss pair got break point opportunities at 4-all in the first set and 5-all in the second, and grabbed the chances with both hands to serve both sets out.
"We had played them twice before and we were 1-all, so we knew we had to come out and play well, like we've been trying to do every match here at the WTA Finals," Sania said after the match.
"We just tried to come out and play our best, and that was enough to win today”, Sania added.
After joining hands, Sania and Martina have won eight women's doubles titles, including two Grand Slam titles at Wimbledon and the US Open this year.
Sania and Martina are just two wins away from their ninth WTA doubles title since joining forces eight months ago.    


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