Barbora Strycova will face Serena Williams in her first grand slam semi-final after shocking British hope Johanna Konta at Wimbledon.
The 33-year-old from the Czech Republic came from 4-1 down in the first set to win 7-6 (5) 6-1 on Centre Court.
Strycova's only other quarter-final appearance at a major tournament was here five years ago, but on Thursday she will get a shot at seven-time winner Williams for a place in the final.
"It sounds crazy. It's happening but I can't really believe it," she told the BBC.
"Also when she hits them, the ball doesn't bounce that much. It's really tough to return.
"But I kept fighting. I knew that I have to be 100 per cent for every ball, then I will break her rhythm a little bit. It happened in the second set."
Ukrainian Svitolina was a 7-5 6-4 winner over Czech Karolina Muchova to advance to her first grand-slam semi.
