In picking up their second WTA title as a duo in their fifth event at the Apia International Sydney without dropping a set, Nadia Petrova and Katarina Srebotnik had quite an impressive list of victims.

Petrova and Srebotnik took out former doubles World No.1 Liezel Huber and Sania Mirza in the quarterfinals, former French Open champions Andrea Hlavackova and Lucie Hradecka in the semifinals and current doubles World No.2 Sara Errani and No.1 Roberta Vinci in the final.

Petrova now has 22 WTA doubles titles to her name, and Srebotnik has 31.

"We're very pleased with our first tournament of the year together," said Petrova, whose previous triumph alongside Srebotnik came at Moscow in 2008. "We had good off-seasons and it's nice that it's already paying off - we played some decent doubles this week and every match has been in straight sets, which means a lot. Now we have our eyes on the big prize."

"This tournament gives us a lot of confidence - it was a test to show us where we're at," Srebotnik said. "It was a tough draw for our first tournament together since committing to the partnership for the year, and every match was very, very difficult, but we played well every match. It shows we're in good form."

Meanwhile, at the Moorilla Hobart International, Garbiñe Muguruza and María-Teresa Torró-Flor were victorious in their first event together, beating Timea Babos and Mandy Minella in the final. It was the first WTA title of any kind for the Spaniards.

Both doubles finalists saved match points during the week, Babos and Minella three in their first round match against Sílvia Soler-Espinosa and Carla Suárez Navarro and Muguruza and Torró-Flor three in their semifinal match versus Ashleigh Barty and Bojana Bobusic.