Argentine tennis players Lautaro Midon (234th), Andrea Collarini (240th), and Manuel La Serna (433rd) advanced to the quarterfinals of the Challenger 50 in Buenos Aires, held at the Argentine Tennis Club. According to the Argentine News Agency, Midon defeated Romanian Stefan Palosi (507th), while the other two players eliminated compatriots: Lucio Ratti (607th) and Santiago Rodríguez Taverna (227th), respectively. Additionally, young Argentine players Juan Estévez (474th) and Máximo Zeitune (835th), aged 20 and 19, could not get past the second round. Leaving no doubt in a match where he had a clear ranking advantage, Lautaro Midon emerged as the top contender for the title. As the second seed, he defeated Palosi 6-3, 6-2. Although it cost him 13 points to win his first service game, with a break point against him, Midon was superior throughout the encounter. In this stage, the 21-year-old player will face the experienced Peruvian Juan Pablo Varillas (253rd). Meanwhile, Andrea Collarini, the third seed, eliminated Argentine Lucio Ratti 6-4, 6-2 and reached the quarterfinals. A good result for him, as he lost in the first round of last year's tournament, Collarini started the match with a break: the only one he needed to win a set in which he did not allow break points. In the second set, two breaks in the third and seventh games settled the matter for the 'Puma', who sealed the result needing only one match point and will play Brazilian Pedro Boscardin Dias (275th) in the next phase. One of the tournament's surprises was led by the Tucumán native Manuel La Serna, who, despite not being seeded, managed to eliminate top candidate Santiago Rodríguez Taverna. La Serna's victory, in which he highlighted having made adjustments to his serve, smash, and lob during the preseason and valued that they are 'bearing fruit,' came in a very changeable first set. Having started the match with two consecutive breaks and taking a 4-0 lead, Taverna managed to recover and forced a tiebreak, in which the 21-year-old player came out on top and won 7-3. In the final set, breaks alternated in the second and third games, but it was La Serna who was able to take his opponent's serve again in the eighth game to serve for the match in the next game, winning 6-3. With a four-game advantage, Lautaro Midon was able to close the match on his fourth match point to advance to the quarterfinals. Breaking his opponent's serve to zero in the fourth game, the Correntino was able to close out the first set on his second opportunity. The second set began with more calm, with a break in the first game, before he again secured his opponent's serve in the fifth game.
