Messi, Aguero and Argentina train ahead of Paraguay game | Copa America 2019
The session was supposed to have taken place at the Estadio do Mineirao, the venue for the game, but was moved to a nearby facility to protect the playing surface at the request of the organisers.
'La Albiceleste' (The White and Sky-Blues) are currently bottom of Group B after losing their opening game 2-0 to Colombia and another defeat would take them perilously close to elimination before the knockout phase.
The pressure is building on star men Lionel Messi and Sergio Aguero to rescue Argentina from their poor start and avoid a repeat of last year's World Cup in Russia, where they made an early exit.