Victoria Mboko stunned Elena Rybakina with a dramatic comeback at the Qatar Open, knocking out the Australian Open champion in the quarter-finals to propel herself toward the WTA's top 10 for the first time. The 19-year-old Canadian, who began the season ranked outside the top 300, trailed 2-4 in the deciding set before rallying to win 7-5 4-6 6-4. This marks her second victory over the world number three in their four meetings.

Maria Sakkari delivered another major upset, defeating Iga Swiatek 2-6 6-4 7-5 to end the Polish star's nine-match winning streak. The unseeded Greek, who has slipped to world number 52 and hasn't won a tournament since March 2024, was left speechless by the victory. Sakkari's triumph comes after a nervous start and highlights her ability to rise against top competition.

Both results significantly reshuffle the tournament's semi-final lineup, with Sakkari facing Karolina Muchova and Ostapenko set to meet Jelena Ostapenko. These upsets underscore the volatility of women's tennis, where form and mental resilience can overturn rankings and expectations in a single match.