The world number one pair of Sania Mirza and Martina Hingis will today play its third and final round-robin match of the year-ending WTA Finals in Singapore. It will take on the fourth seeded team Hungarian-French team of Timea Babos and Kristina Mladenovic.Sania and Hingis, who are in the Red Group, have won both their opening matches, and a victory today will ensure them a place in the semi-finals.Top-8 players and pairs of the year, divided into two round-robin groups – red and white – participate in this tournament each year.Top two from each group progress to the semi-finals, followed by the Final.Sania had won the tournament last year with Zimbabwean Cara Black. Sania and Martina, as a pair, have won 8 titles this season, including Wimbledon and US Open.