Messi's best Argentina side? Super-charged Brazil? South America's World Cup-bound teams in action

South America's World Cup-bound sides were in action on Friday. What did we glean from performances from Argentina, Brazil, Ecuador, and Uruguay?

Messi's best Argentina side? Super-charged Brazil? South America's World Cup-bound teams in action
South America's World Cup-bound sides were in action on Friday. What did we glean from performances from Argentina, Brazil, Ecuador, and Uruguay?