Argentine tennis player Roman Andres Burruchaga delivered a stunning upset on Wednesday in Croatia, knocking out world No. 9 and top-seeded Flavio Cobolli of Italy 6-2, 6-4 in the second round of the Plava Laguna Croatia Open Umag.
It marked the first career victory over a top-10 opponent for Burruchaga, who was dominant throughout, converting four of seven break point opportunities and winning 78.1% of his first-serve points. Cobolli had been making his return to competition following a run to the Wimbledon quarterfinals. Burruchaga will now face fellow Argentine Camilo Ugo Carabelli, the tournament’s seventh seed, who came back to defeat Spain’s Pablo Carreno Busta 3-6, 7-5, 7-5.
Spain’s Daniel Merida also caused a stir by ousting No. 3 seed Tomas Martin Etcheverry of Argentina 7-5, 6-4. Second-seeded Alejandro Davidovich Fokina of Spain avoided a similar upset with a 6-4, 7-5 victory over Argentina’s Marco Trungelliti. Italy’s No. 4 seed Matteo Arnaldi took care of Argentine qualifier Federico Agustin Gomez 6-3, 5-7, 6-3. Damir Dzumhur of Bosnia and Herzegovina, Alex Molcan of the Slovak Republic, and France’s Titouan Droguet also moved into the next round.
Nordea Open — Bastad, Sweden
Former champion Nuno Borges breezed past Bulgarian wild card Grigor Dimitrov 6-4, 6-2 to book a quarterfinal spot in Bastad, Sweden. The fifth-seeded Portuguese player needed only 65 minutes to finish the job. Borges, who earned his only ATP Tour title by defeating Rafael Nadal at Bastad in 2024, will next square off against defending champion Luciano Darderi of Italy.
Darderi, seeded second, dispatched Germany’s Daniel Altmaier 6-4, 6-4. Two other seeds were shown the door: Italian Stefano Travaglia beat No. 4 Mariano Navone of Argentina 6-4, 6-2, and Paraguay’s Adolfo Daniel Vallejo rallied past sixth-seeded Botic van de Zandschulp of the Netherlands 4-6, 6-3, 7-6 (4). With that win, Vallejo became the first Paraguayan player to reach a tour-level quarterfinal since Ramon Delgado accomplished the feat back in 2006.
EFG Swiss Open Gstaad — Gstaad, Switzerland
Fourth-seeded Frenchman Arthur Rinderknech survived two match points to edge past fellow Frenchman and qualifier Clement Tabur 6-7 (9), 7-6 (5), 7-5 in a grueling second-round battle that lasted 3 hours and 21 minutes. Tabur had come within two points of forcing a victory during the second-set tiebreaker, but Rinderknech rallied and ultimately broke through late in the third set to advance to the quarterfinals.
Third-seeded Valentin Vacherot of Monaco made a successful comeback from a foot injury, defeating Germany’s Yannick Hanfmann 4-6, 6-3, 6-4 in his first match since the French Open. Belgium’s No. 7 seed Raphael Collignon took down Italy’s Lorenzo Sonego 7-6 (2), 7-6 (5). A match between Greece’s Stefanos Tsitsipas and Swiss wild card Jerome Kym was halted due to darkness with the third set level at 5-5, after each player had won one of the first two sets.
