Though there has been no shortage of upsets in this year’s Copa Argentina, River Plate ensured that they weren’t added to that list with victory over B Nacional neighbours Platense in Lanús.

In-form River, without three of their key creative players on international duty, were made to work in order to breakdown a resolute, well organised Platense side but eventually prevailed thanks to two second half penalties.

Lucas Pratto and Ignacio Scocco both converted from the spot to seal victory but not after an uncomfortable opening 45 minutes in which River struggled to penetrate and the Calamar threatened from set-pieces.

However, Marcelo Gallardo introduced Ignacio Fernández shortly after the break and River began to turn the screw. Soon after Platense defender Emanuel Bocchino clumsily brought down Rafael Santos Borré and Pratto sent Jorge De Olivera the wrong way.

Ten minutes from time, a handball gifted substitute Ignacio Scocco the opportunity to double the lead and with it River sealed victory.

With safe passage to the quarter finals in the bag, the Copa Argentina champions now face either Sarmiento de Resistencia or Atlético de Rafaela ahead of what could be a colossal Superclasico semi against Boca.