KAOHSIUNG, Taiwan – Venus Williams overcame a rocky start to defeat Anastasija Sevastova and book her place in the semifinals of the Taiwan Open.

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By her own admission, Williams did not know much about Sevastova’s game heading into their quarterfinals clash. However, it quickly became apparent that she would not have things all her own way.

Sevastova, playing with the carefree abandon of an overwhelming underdog, surged into a 5-2 lead. The top seed had no intentions of going quietly, turning the match on its head with a run of five straight games and fending off two set points along the way.

This took the wind from Sevastova’s sails, Willims breaking three more times to ease over the finishing line, 7-5, 6-2.

“I didn’t think about the set points, I just tried to not lose the set,” Williams said. “But she was playing really well and was very determined so it wasn’t easy to play her. From there, I think the experience really helped me and there was a lot of pressure on her.

“I just tried to do whatever was winning! If it’s not working you change it – so that’s the strategy.”

Meeting her for a place in the final is No.3 seed Yulia Putintseva. At last year’s Wimbledon, Putintseva ran Williams close, eventually being edged out after two tight sets.

“We’ve played a couple of times. The last time she played really, really well. I have a lot of respect for her and her game and I hope tomorrow to have a faster start. But no matter what happens I hope to play a good match.”

On the other side of the draw Hsieh Su-Wei kept alive hopes of a home champion when she outfoxed Russian prospect Elizaveta Kulichkova, 6-2, 6-0, to set up a meeting with No.2 seed Misaki Doi.

“I had played her twice and won in three sets, so we knew each other well,” Hsieh said. “She’s aggressive and I tried to take a relaxed approach today. I just focus on myself. Fans are so enthusiastic and I believe they make the sun shine down on me!

“In the semifinal I will play Misaki Doi. I haven’t played her for a while, but she’s been quite consistent. I just returned to Top 100, so I won’t judge myself too high or too low. I just wanted to be myself and do my best.”