Following their straight sets victory in the opening match of the red group of round robin on Monday, the Indo-Swiss combine came up with another brilliant performance to beat Czech seventh seeds Andrea Hlavackova and Lucie Hradecka 6-3, 6-4 in an hour and 17 minutes.
Playing on hard courts, Sania, who won the prestigious tournament last year with Zimbabwes Cara Black, and Martina got off to a perfect start by first holding their serve and then breaking the Czechs in only the second game of the match.
They again broke Andrea and Lucie in the sixth game of the first set to take a 5-1 lead.
Serving for the set, the reigning Wimbledon and US Open champions were, however, broken by the seventh seeds in the seventh game. The Czech girls also went on to hold their serve in the next game.
But at 5-3, the worlds top-2 ranked Sania and Martina only needed a couple of minutes to pocket the set in 33 minutes and take the lead in the match.
Like the first set, the Indo-Swiss pair was broken once in the second set. But Sania and Martina were just too good, breaking the Czech serve twice more to easily pocket the contest.
Sania and Martina, the only pair in their group to have not lost a set, will take on Hungarian-French fourth seeds Timea Babos and Kristina Mladenovic in their final round robin match on Friday before the knockouts.
On Wednesday, PEOPLE confirms, Berry submitted a second petition – identical to the first but without the use of pseudonyms.