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 By Tim Vickery

Brazil and Argentina look to regain Copa Libertadores stranglehold

Flamengo supporters
Flamengo supporters will turn out in numbers at the Maracana stadium against San Lorenzo.

Last year, Atletico Nacional broke the monopoly of the big two on South America's premier club prize.

By winning the Copa Libertadores, the continent's Champions League equivalent, the Colombian side ensured that the trophy did not go either to Argentina or to Brazil first time since 2008.

Indeed, the Libertadores has only eluded the big two twice in the last 12 years and, for a number of reasons, it is hard to see it going anywhere else in 2017.

First, the holders are going through an inevitable...