Tennis: Stosur storms into Japan semi-finals

OSAKA (AFP) - Defending champion Samantha Stosur rolled into the semi-finals of tennis' Japan Women's Open on Friday, with a clinical 6-4, 6-1 victory over Yulia Putintseva of Kazakhstan.

The top-seeded Australian, who won the US Open title in 2011 and reached a career-high fourth in the world, will face Ukraine's Elina Svitolina in the last four after the No. 3 seed blew away American Lauren Davis 6-2, 6-4.

Zarina Diyas restored some Kazakh pride by battling to a 6-7, 6-4, 6-2 win over Croatia's Ana Konjuh.

She will play Asian Games gold medallist Luksika Kumkhum in Saturday's semi-finals after the Thai knocked out American Madison Keys, who retired hurt while trailing 2-6, 3-4.

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