Australian No.2 Ajla Tomljanovic has crashed out of the Tianjin Open in China, going down in disappointing fashion to Russia’s Veronika Kudermetova in the opening round.

World No.50 Tomljanovic lost 6-4 6-2 as she struggled on serve, being broken four times and winning only 51 per cent of points on her service game to a player who is ranked five places above her.

Chinese second seed Wang Qiang led a host of home players into the second round with victory over Australia’s Arina Rodionova 6-3 6-4 .

There were also first-round wins for Zheng Saisai, Peng Shuai, Wang Xinyu and Wang Xiyu.

Dayana Yastremska prevented a Chinese clean sweep, beating Zhu Lin 6-2 6-3, and Magda Linette was a 6-3 6-1 winner over Christina McHale.

Australian wildcard Samantha Stosur will play her second round match against sixth-seeded Kazakh Yulia Putintseva on Wednesday.