Sorana Cirstea shocked top seed Aryna Sabalenka, beating her 2-6 6-3 7-5 in their third-round clash at the Italian Open on Saturday.
The 36-year-old Romanian, who will retire later this year, beat a world number one for the first time.
"I’m very happy with the win. I thought I played really well today. I’m working really really hard. It’s nice to have this result as payoff," Cirstea said.
Four-time Grand Slam winner Sabalenka seemed to be struggling with an injury as the match progressed, and took a medical timeout when Cirstea was leading the third set 4-3.
Cirstea won the next game but Sabalenka fought back to make it 5-5. But Cirstea broke again to serve for the match.
Sabalenka, struggling with her backhand returns, hit the net and sent two shots over the baseline as Cirstea clinched victory.
It was Cirstea's second victory over Sabalenka in four meetings, having also prevailed in Miami in 2023, the first time they played each other.
"Maybe if I win the tournament, I promise I will think about (not retiring)," joked Cirstea, who owns four singles WTA titles.

UEFA slams FIFA's 'incomprehensible' Balogun decision after Trump call
England's Henderson set to miss rest of World Cup with freak arm injury
Neymar says career with Brazil 'over' after loss to Norway
F1 could bring back refuelling and independent V8 supplier, says FIA head
Tour de France riders brace for scorching conditions as heatwave sweeps in
