To be sure, economic development and demographics alone are not enough to guarantee Olympic success.

The dealers have promised a steady supply of wares, but warned prices may go up and delivery wait times too under the weight of tens of thousands of security forces and heavy demand.

Javier Mascherano, the coach of Argentina's Olympic football squad, said Wednesday that a video showing racist chants by national team players after they won the Copa America was "taken out of context".

"For the Olympics my club has a position which is very clear so that means I think I will not participate in the Olympics. That is how it is," Mbappe said.

"Several foreign nations are going to reinforce us in certain critical areas, such as dog-handling capabilities where the needs are enormous," an official at the defence ministry told AFP on condition of anonymity.

Argentina secured their place at the Games after beating Brazil 1-0 on Sunday in the final four of South America's qualifying tournament.