India's Davis Cup mates Leander Paes and Rohan Bopanna set up a quarter-final clash against each other in the Shanghai Masters after registering wins with their respective partners.
Somdev Devvarman suffered a second successive defeat against Serbia's Janko Tipsaveric to crash out of the ATP Farmers Classic.
Rohan Bopanna and Aisam-ul-haq-Qureshi erased a one-set deficit against Janko Tipsaveric and Viktor Troicki to storm into the semi-finals of the St. Petersburg Open.
The World number 14 subdued the young Russian 6-3, 6-4 to capture his fifth ATP singles title.