Atlético Nacional vs Gremio

Atlético Nacional, Colombia’s best team, takes on Gremio of Brazil in Copa Libertadores, the South American championship tournament.

A win will all but assure Nacional a trip to the knockout round of 16. A loss will mean Nacional absolutely must get a win later this month against Newell’s Old Boys, and maybe even some help, to advance.

Gremio beat Nacional 3-0 last month in Porto Alegre.