In a tense encounter at the Rio Open, Brazilian tennis player João Fonseca faced a disappointing defeat against Peru's Ignacio Buse, losing the match with scores of 7/5, 3/6, and 4/6 in the round of 16. The match was delayed by heavy rain, leading to a 2.5-hour postponement, which contributed to the pressure on the young 19-year-old player who aimed to be the first Brazilian champion of the tournament held in his home city.

Fonseca started strong, winning the first set and showing potential. However, as the match progressed into the second set, his performance faltered due to fatigue and a series of mistakes which allowed Buse to equalize. The Brazilian, currently ranked 38th in the world, struggled to break Buse's serve, and the Peruvian capitalized on this weakness, ultimately dominating the third set and securing his advancement in the tournament.

With this victory, Ignacio Buse advances to the quarter-finals where he will face Italian Matteo Berrettini, who previously won against Serbian player Dusan Lajovic. This defeat not only halts Fonseca's ambition of making history in his home tournament but also highlights the competitive nature of the Rio Open as international players compete fiercely for the title.