Vondrousova, 24, had never gone past the second round at the All England Club until this year.
But she is now one win from glory after beating Ukraine’s Svitolina – also unseeded after giving birth nine months ago – in a 6-3 6-3 win.
Vondrousova will play Aryna Sabalenka or Ons Jabeur in Saturday’s final.
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Belarusian second seed Sabalenka meets Tunisian sixth seed Jabeur in Thursday’s second semi-final, which follows on from the first match on Centre Court.
Whoever advances, it is guaranteed there will be a first-time champion at the All England Club.
“I can’t really believe,” said Vondrousova, who had never played on Centre Court before.
“I’m just so happy. Elina is such a fighter and also a great person. It was such a tough match.”
Written by: Debby Eselebor
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