Beijing: Sania Mirza and Cara Black on Friday pulled up a surprise as they defeated the top seeded Italians Sara Errani and Roberta Vinci to storm into the finals of the China Open which also extends their unbeaten run to eight matches in a row.

Sania and Zimbabwe's Cara,have earlier won the Tokyo event, defeated the formidable Italians 6-4 6-4 in a match which lasted for one hour and 12 minutes.

Mirza hasbeen doing well off late, starting the season with Bethanie-Mattek Sands and had choped and changed partners to the extent that she had played with four different players this season. The names include the likes of America's Liezel Huber, Italy's Flavia Pennetta, China's Jie Zheng and now Cara.

Sania has opportunity to win her fifth title of the season.

They now face winners of the second semifinal between the pairs of China's Su-Wei Hsieh and Shuai Peng and Vera Dushevina of Russia and Arantxa Parra Santonja of Spain.

Bopanna, Roger-Vasselin in Japan Open final

Rohan Bopanna managed to reach his third final of the season when he along with Edourad Roger-Vasselin went past Treat Huey and Dominic Inglot in straight sets in the ATP Japan Open, here today.

Bopanna and Roger-Vasselin had won the match against the Austrian-Briton combination 6-4 7-6(6) in the semifinals of the USD 1,297,000 hard court event.

The two teams had several chances to break each other in the second but did not succeed, eventually pushing it to tie-breaker, where the fourth seeds prevailed.