Indian doubles pair of Mahesh Bhupathi and Rohan Bopanna entered the quarterfinals of the Shanghai Masters after beating Treat Huey and Jonathan Marray in straight sets at Shanghai today.The seventh seeded Indians got the better of the American-British unseeded combo 7-6, 6-4 .Bhupathi and Bopanna,had got a first round bye.They will next take on the winners of another second round match between Tomas Berdych and Nenad Zimonjic and second seeds Max Miryni and Daniel Nestor.