[caption id="attachment_5289" align="alignnone" width="580"]Sania-with-Hingis-03 San-Tina continue their winning streak in womens doubles .[/caption] Internet Desk: There’s no stopping San-Tina as the Indo-Swiss doubles pair notched up their 38th straight win to reach the semi finals of the women’s doubles event of the St. Petersburg Ladies Trophy on Saturday. Sania and Hingis stormed into the semis with a easy straight set 6-4 , 6-1 win over Russian duo of Daria Kasatkina and Elena Vesnina in the quarterfinals. The top seeded pair will now meet the third-seeded pair of Anabel Medina Garrigues and Arantxa Parra Santonja to secure a spot in the final. Earlier this year, the Indo-Swiss duo won their third consecutive women's doubles Grand Slam title by lifting the Australian Open trophy. Since an upset loss in the French Open quarterfinals, the Indo-Swiss duo has been unstoppable, winning 42 of the next 45 matches to take home titles at Wimbledon, the US Open, Guangzhou, Wuhan, Beijing, the WTA Finals in Singapore, Brisbane and Sydney.