Novak Djokovic pairs with brother for the first time in Beijing

He won 84 percent of his first serve and 69 percent of second serve points.

Venus says serving to Novak was a challenge.

The brothers chest-bumped after their success in what was their first victory together in five attempts on the ATP Tour.

“Once I stepped it in a little bit and took the ball a little earlier, I felt I was more in control and started to play better”.

Wildcard Zhang, China’s number one but ranked 219th in the world, could not contend with the power and precision of Djokovic’s ground strokes as he was broken immediately and soon yielded the first set.

“The conditions are definitely suitable to my game,” Djokovic was quoted as saying by the ATP website. “There’s a few things that play in my favor”. “But tomorrow I have another match”, said the Spaniard, who was presented with a cake on court after the win.

Pennetta’s defeat came after fellow Italian Roberta Vinci was beaten 6-1, 3-6, 6-2 by Bethanie Mattek-Sands, in yet another surprise at the unpredictable Beijing tournament.

Eyeing their eighth title of the season, Sania Mirza and Swiss partner Martina Hingis prevailed over the German-Czech pair of Julia Goerges and Karolina Pliskova 7-6(5) 6-4 to enter the semifinals of the women’s doubles. Nadal won 31 matches consecutively starting in 2005 before losing in 2009 at Roland Garros.

In the second set he notched a double-break by breaking for 5-1 then held at 30 finishing with a backhand smash for to close the match in 55 minutes.

Pavlyuchenkova’s opponent in the quarterfinals will be Ana Ivanovic who edged out Svetlana Kuznetsova 7-5 4-6 6-2 in a thrilling battle.