Zvonareva through to last four in Dalian

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Former world number two Vera Zvonareva continued her good form at the Dalian Women's Open, progressing to an all-Russian semi-final as top seed Duan Ying-ying was thrashed on Friday.

Zvonareva - who returned to action in New Haven last month after almost two years away from the game - beat Sabina Sharipova 6-3 6-2 to make the last four.

Next up for Zvonareva is a clash with compatriot Vitalia Diatchenko, who built on her victory over second seed Danka Kovinic with a straight-sets win over Zhang Kai-Lin.

Duan, the top seed in Dalian, saved a match point in her second-round match, but was comprehensively defeated in the quarter-finals, losing 6-2 6-1 to Kateryna Kozlova.

That leaves Zarina Diyas, Kozlova's semi-final opponent, as the highest seed left in the draw. Diyas beat Han Xinyun 6-2 7-6 (7-3).