Sakkari, who was unranked, found herself without words following her 2-6 6-4 7-5 victory against the top-seeded Swiatek.
After achieving a personal best ranking of world number three four years prior, Sakkari has subsequently dropped to 52nd place and has not secured a tournament championship since March 2024.
However, following a shaky initial set, Sakkari managed to regain her composure and secure her spot in the semi-finals.
“I am truly at a loss for words, as it has been quite some time since I achieved such a significant victory,” she expressed.
“A decline in rankings combined with suboptimal tennis performance often leads to self-doubt.
“One begins to believe they will never again overcome such formidable opponents.”
The player from Greece is slated to face Karolina Muchova of the Czech Republic in the alternate semi-final, subsequent to the 14th seed’s decisive 6-3 6-4 win over Anna Kalinskaya from Russia.
Ostapenko, representing Latvia, defeated Elisabetta Cocciaretto, an unranked competitor from Italy, with scores of 7-5 6-4 during her quarter-final match.
