Atlético Tucumán beat River 1-0 at the Monumental with a goal from Renzo Tesuri at 18 minutes into the first half. Julio César Falcioni's team achieved its first away win since January 2025. The defeat has no consequences for River, which had already guaranteed second place in zone B with 29 points. Eduardo Coudet's team still has not confirmed its opponent in the round of 16. The first arrival was from the local team, at six minutes, with a double wall in which defender Fabricio Bustos closed against the rival area and took a shot, which went high and over the crossbar. The visitors opened the scoring when 18 minutes into the first half, with a great dribble on the left side by midfielder Franco Nicola against defender Germán Pezzella, who put a cross to the second post and left it to defender Maximiliano Villa, whose defective shot served as a pass back for Renzo Tesuri to define first and score the 1-0. River attacked again with danger at 26 minutes, when a combination between forwards Facundo Colidio and Agustín Ruberto allowed the second's left-footed shot, which went against the left post of goalkeeper Luis Ingolotti, who could deflect it. A minute later, in a corner where Ingolotti miscalculated the cut, Pezzella had the entire goal at his disposal to shoot, but his shot went high. The Millionaire team attacked again with risk when 38 minutes into the game, after a bad and distant exit by Ingolotti, which ended outside the area and handed the ball to forward Ian Subiabre, who went to the left side before defining by elevation, missing his shot by the first post. The first arrival in the second half was from the local team, with an advance from the left towards the middle by forward Lautaro Pereyra, who eluded a rival and took a shot that went very close to the second post. River attacked again when 10 minutes into the second half, with a pass back from the left by Pereyra for the control of midfielder Kendry Páez in the large area, who shot without being able to give it a run with his right leg and ended up handing the ball to the Decano's goalkeeper. Nine minutes later, a floated cross from the right was controlled by attacker Facundo Colidio, with his back to the goal, who pivoted for the first shot of forward Maximiliano Salas, who did not hook the ball well and deflected his shot by the left post of Ingolotti. Falcioni's team closed the regular phase in 13th place, with 14 points. Coudet's team still has not confirmed its opponent in the round of 16, it could be San Lorenzo or, if it wins by two goals difference, Defensa y Justicia. And so, River's defeat has no consequences, but Coudet's team was booed at the Monumental. But River had already guaranteed second place in zone B with 29 points. So, Falcioni's team achieved its first away win since January 2025. The visit of Atlético Tucumán to the Monumental will be remembered for Franco Nicola's great dribble and Renzo Tesuri's goal. Falcioni's team demonstrated its ability to beat a team like River in its own stadium. River's defeat has no consequences, but Coudet's team was booed at the Monumental. Falcioni's team closed the regular phase in 13th place, with 14 points. Coudet's team still has not confirmed its opponent in the round of 16.