Radwanska wins Tianjin opener

Pole top seed and defending champion Agnieszka Radwanska won her first round match convincingly at the Tianjin Open in China on Wednesday.

Radwanska hammered Germany's Tatjana Maria 6-1, 6-2 in just 61 minutes to set-up a second-round clash with Russia's Evgeniya Rodina, who beat American Christina McHale 6-1, 5-7, 6-0 on Tuesday.

In the opening set, Radwanska broke her German opponent's serve in the second and fourth games to claim the set 6-1.

The second set was all Radwanska as she claimed her opponent's serve in the third and seventh games to win the set and match 6-2.

In second-round results, Russian second seed Svetlana Kuznetsova defeated Donna Vekic of Croatia 7-5, 6-4 while Danka Kovinic of Montenegro beat American Shelby Rogers 2-6, 6-1, 6-2.

In an all-China matchup, Han Xinyun saw off Wang Yafan in straight sets, winning 7-5, 6-3 and Japan's Naomi Osaka was too sharp for Lucie Hradecka of the Czech Republic, going through 6-2, 7-6(4).