Remarkable fight back puts Jabeur in Rome semis, Tsitsipas through
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Tunisian Jabeur made history last weekend by winning in Madrid to become the first Arab or African player to claim a WTA 1000 title and let out a roar of delight after a magnificent win in Rome.
The 27-year-old looked certain to be heading out after being hammered by world number four Sakkari in the first set and going down 5-2 in the second.
Greece's Sakkari was serving for what appeared to be a routine win but from nowhere Jabeur pushed back, breaking serve in game eight before winning the next seven to go three ahead in set three, a lead which she never relinquished.
In the last four Jabeur will face either Jil Tiechmann or Daria Kasatkina, who play in the last quarter-final on centre court later on Friday.
Earlier Iga Swiatek stretched her winning streak to 26 matches after a straight-sets victory over Bianca Andreescu, 7-6 (7/2), 6-0.
Swiatek, the reigning champion in Rome, is gunning for a fifth tournament victory in a row and showed why she is the favourite for the French Open later this month against Canadian Andreescu.
The world number one will face Aryna Sabalenka in the women's semi-finals after the third seed won 4-6, 6-3, 6-2 against Amanda Anisimova.
Belarus' Sabalenka beat Anisimova for the first time in five attempts after the American had ended her Madrid title defence in the first round at the end of last month.
Tsitsipas' crowd drama
Stefanos Tsitsipas made the men's semi-finals by beating local hero Jannick Sinner 7-6 (7/5) 6-2 in a clash which was stopped for over 10 minutes at match point after a spectator fell ill.
World number five Tsitsipas has already won the Monte Carlo Masters this clay swing and reached the last four in impressive style against Italian Sinner, who was in his first ever Rome quarter-final.
Next up Tsitsipas will face Alexander Zverev, who made the semis after comfortably seeing off Cristian Garin, the only unseeded player left in the tournament, 7-5, 6-2.
It will be the third time in the space of a month that the German will meet the Greek in the last four, with the pair sharing the honours from clashes in Monte Carlo and Madrid.
"He's one of the most difficult players to play against on the tour. I have a lot of respect for him as he's achieved a lot in our sport," said Tsitsipas of Zverev.
Tsitsipas was set to seal his win when someone in the crowd appeared to collapse and play was stopped amid loud whistles directed at the umpire who wanted to continue.
What seemed like an age passed before the spectator was stretchered out of centre court and Tsitsipas could finally serve his match point, and a simple passing shot from Sinner's miscalculated drop shot sent him through.
"I've had these situations in the past. The important thing is to stay within your element," Tsitsipas added.
Tsitsipas will take number four spot in the world rankings on Monday after Rafael Nadal's shock third-round exit at the hands of Denis Shapovalov on Thursday night.
Shapovalov's journey ended with a 7-6 (7/5), 7-5 defeat to Casper Ruud, who will face Novak Djokovic should the Serb beat Canada's Felix Auger-Aliassime in the day's final match.
Djkokovic needs to beat Auger-Aliassime to maintain top spot in the world rankings, a position he has held for a record 369 weeks.