The semifinal lineup is set for the 2026 Gonet Geneva Open after Thursday's quarterfinal matches in Switzerland.
Sixth-seeded Casper Ruud defeated Alexei Popyrin 6-4, 6-3 to reach the next round.
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The Norwegian did not face any breakpoints in the match and has not dropped a set all week.
Ruud will face Mariano Navone, who dominated Jaume Munar 6-2, 6-2 in the quarterfinals.
Navone earlier came back from a set down against Marco Trungelliti and then beat Cameron Norrie in straight sets.
On the other side of the draw, Alexander Bublik rallied from a first-set loss to beat Arthur Rinderknech 5-7, 6-4, 6-2.
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Bublik has won three of his last five matches.
He will meet American Learner Tien, who defeated Alex Michelsen 6-4, 3-6, 6-1 in the quarterfinals.
Tien earlier upset Stefanos Tsitsipas in straight sets, winning both sets in tiebreakers.
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The semifinals are scheduled for Friday, May 22, 2026, with the winners advancing to the Geneva Open final.
