Montevideo: Brazil and Argentina head into the second round of qualifiers for the 2018 World Cup on Tuesday looking to get their campaigns back on track after opening round defeats which have left the South American giants in disarray.

The pall of gloom enveloping Brazilian football since their humiliation against Germany at the World Cup last year darkened last week when they were humbled 2-0 by Copa America champions Chile in Santiago. Argentina, still struggling to shake off the disappointment of losing the Copa America final in July -- the team's second defeat in a major final in 12 months -- were stunned by a 2-0 reverse at home to Ecuador.