October 07, 2014
Samantha Stosur of Australia returns a shot against Petra Kvitova of the Czech Republic during a semifinal match of the China Open tennis tournament at the National Tennis Stadium in Beijing, China, Saturday, Oct. 4, 2014. (AP Photo/Vincent Thian)
Vincent Thian

OSAKA, Japan (AP) Top-seeded Sam Stosur began the defense of her Japan Women's Open title with a straight-sets victory against Misa Eguchi of Japan on Tuesday.

Coming off a semifinals run in the China Open last week, Stosur defeated Eguchi 6-4, 7-5. The two-time Japan champion lined up fellow Australian Jarmila Gajdosova in the second round. Gajdosova has a 2-0 record against Stosur.

The three other seeds in action also won; No. 4 Coco Vandeweghe beat Kristina Mladenovic of France 6-2, 6-3, No. 5 Zarina Diyas of Kazakhstan topped qualifier Chan Yung-jan of Taiwan 7-6 (3), 6-1, and No. 8 Lauren Davis of the United States beat qualifier Hiroko Kuwata of Japan 1-6, 6-4, 7-6 (3).

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