In the second set, everything indicated that the match would lean in favor of the Argentine, but he failed to capitalize on any of his five break-point opportunities, allowing the Frenchman to force a tie-break, which he won 7-4. The final set also required a tie-break, where Müller capitalized on Etcheverry's doubts to secure the victory after 3 hours and 4 minutes of play. This marks the end of a 2025 season to forget for Etcheverry, who started with disastrous results and fell out of the top 50, although he achieved some consistency in recent months that raises hopes for 2026. Argentine tennis player Tomás Etcheverry suffered from a lack of effectiveness in key moments and fell in a tight match against Frenchman Alexandre Müller in the quarterfinals of the ATP 250 in Athens. Müller, who had the best season of his career in 2025, won 6-7(2), 7-6(4), 7-6(3) to advance to the quarterfinals of the Greek tournament, which is owned by the Djokovic family. Etcheverry started the match better, taking the first-set tie-break convincingly 7-2. However, the Argentine's season is not over, as he still has the Davis Cup ahead, where Argentina will face Germany in the quarterfinals. Müller's opponent in the quarterfinals will be the winner of the match between Swiss Stan Wawrinka and Italian Lorenzo Musetti, who needs to win the title in Athens to qualify for the ATP Finals, the tournament for the season's top eight players. In other matches of the day, Serbian Miomir Kecmanovic caused an upset by defeating the Italian-Argentine Luciano Darderi in three sets 4-6, 6-2, 6-3, while German Yannick Hanfmann narrowly defeated Czech Vit Kopriva (6-2, 5-7, 7-5).
