Raven Klaasen and Marcelo Melo stretched their winning streak to six by downing No. 3 seeds Marcin Matkowski and Nenad Zimonjic 6-2, 6-4 on Friday in Shanghai. The South African-Brazilian duo is attempting to win a second title in as many weeks after taking home the Tokyo crown last weekend. Klaasen/Melo won 95 per cent of their first serve points (23/24) and did not face a break point in the 53-minute win.

In the semi-finals, they will take on Rohan Bopanna and Lukasz Kubot, who eliminated Feliciano Lopez and Max Mirnyi 6-4, 7-5 in 75 minutes. The eighth seeds struck 11 aces and saved all three break points faced, while going two-for-11 on break chances on the Lopez/Mirnyi serve.

In the top half of the draw, No. 7 Daniel Nestor and Edouard Roger-Vasselin will face No. 5 Simone Bolelli and Fabio Fognini for a place in the final. Nestor/Roger-Vasselin bested Juan Sebastian Cabal and Robert Farah 6-3, 6-4 in 63 minutes, while the Italian duo moved on without striking a ball when Pierre-Hugues Herbert and Nicolas Mahut withdrew due to a Herbert back injury.