ATP roundup: Roman Andres Burruchaga stuns top-seeded Flavio Cobolli in Umag

World No. 9 and top-seeded Flavio Cobolli of Italy made an early exit from the Plava Laguna Croatia Open Umag after Roman Andres Burruchaga stunned him 6-2, 6-4 on Wednesday in the second round in Croatia.

The Argentine earned the first top-10 victory of his career by converting four of seven break points and winning 78.1% of his first-serve points. Cobolli was playing his first match since reaching the Wimbledon quarterfinals. Burruchaga will next face countryman Camilo Ugo Carabelli, the seventh seed who rallied past Spain's Pablo Carreno Busta 3-6, 7-5, 7-5.

Spain's Daniel Merida delivered another upset by eliminating No. 3 seed Tomas Martin Etcheverry of Argentina 7-5, 6-4. Second-seeded Alejandro Davidovich Fokina of Spain avoided a similar fate with a 6-4, 7-5 win over Argentina's Marco Trungelliti, while No. 4 Matteo Arnaldi of Italy defeated 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 advanced.

Nordea Open

Former champion Nuno Borges swept Bulgarian wild card Grigor Dimitrov 6-4, 6-2 to advance to the quarterfinals in Bastad, Sweden.

The fifth-seeded Portuguese needed just 65 minutes to move on. Borges, whose only ATP Tour title came by defeating Rafael Nadal at Bastad in 2024, will next face defending champion Luciano Darderi of Italy.

The second-seeded Darderi beat Germany's Daniel Altmaier 6-4, 6-4. Two other seeds were eliminated, with fellow Italian Stefano Travaglia dispatching No. 4 Mariano Navone of Argentina 6-4, 6-2, and Paraguay's Adolfo Daniel Vallejo rallying past sixth-seeded Botic van de Zandschulp of the Netherlands 4-6, 6-3, 7-6 (4). Vallejo became the first Paraguayan to reach a tour-level quarterfinal since Ramon Delgado in 2006.

EFG Swiss Open Gstaad

No. 4 seed Arthur Rinderknech of France saved two match points before outlasting qualifier Clement Tabur 6-7 (9), 7-6 (5), 7-5 in the second round at Gstaad, Switzerland.

Rinderknech needed 3 hours, 21 minutes to escape the all-French matchup, extending the match after Tabur moved within two points of victory in the second-set tiebreaker. Rinderknech finally secured the deciding break late in the third set to reach the quarterfinals.

Third-seeded Valentin Vacherot of Monaco made a successful return from a foot injury, recovering to beat Germany's Yannick Hanfmann 4-6, 6-3, 6-4 in his first match since the French Open. No. 7 Raphael Collignon of Belgium defeated Italy's Lorenzo Sonego 7-6 (2), 7-6 (5). The match between Stefanos Tsitsipas of Greece and Swiss wild card Jerome Kym was suspended because of darkness with the third set tied 5-5 after they split the first two sets.

--Field Level Media