Vasek Pospisil and Jack Sock remain in contention to capture the eighth and final spot at the 2015 Barclays ATP World Tour Finals, to be held at The O2 in London from 15-22 November.

Pospisil and Sock, who overcame seventh seeds Marcin Matkowski and Nenad Zinonjic 7-6(9), 7-6(2) on Thursday, must capture the BNP Paribas Masters title to stand a chance of qualifying for the prestigious season finale.

Rohan Bopanna and Florin Mergea, hoping to qualify for the first time as a team, are currently No. 8 in the Emirates ATP Race To London and would secure their place in the English capital by advancing to the Paris final.

Alexander Peya and Bruno Soares saw their hopes end after second seeds Ivan Dodig and Marcelo Melo won their second-round clash 6-4, 3-6, 10-6.