Australian Sam Stosur and China's Zhang Shuai have claimed their first Grand Slam doubles title with a straight sets win over the defending Champions and no.2 seeds. 

In Stosur's last Australian Open women's doubles final, all the way back in 2006, she held two match points but could not stop Yan Zi and Zheng Jie from running away with the title.

This time around was different.

In the second set, it looked as though Babos and Mladenovic would break back to level the match but Stosur and Zhang remain calm under pressure to bring the scores level at 40-40. 

From there, they were able to take the match.

"I'm really happy I won the Australian Open in Melbourne with my best friend," Zhang said.

"I know she believes in me as I believe in her. We do it as a team. To now be holding a trophy, and for Shuai, her first Grand Slam, it's really exciting. I'm really happy that I can be the partner she has to be able to do that," Stosur said.