Gimnasia y Esgrima La Plata will beat Deportivo Riestra in the Copa Argentina octavos de final on August 18, 2026, at the Norberto Tomaghello stadium in Florencio Varela. The visitors will erase the memory of the September 19, 2025 1:0 loss and will march into the quarterfinals. TyC Sports and TyC…