Almost none of the ties are settled after the first legs, so keeping an eye on all the games would be a wise thing to do.

The knockout stage of the Copa Libertadores continues this week, with most of the spots in the next round available due to the teams' lack of ability to claim emphatic wins during the first legs that took place last week.

Perhaps it's the lack of fans inside all South American venues, but this edition of the Copa Libertadores has seen some of the most talented squads struggle to earn big wins without fans having their back. Such was the case of Boca Juniors and River Plate, who drew their matches against Atlético Mineiro and Argentinos Juniors, respectively.

This week, all action will kick off Tuesday, July 20. The first game will feature Atlético Mineiro and Boca, who played out to a controversial goalless draw at La Bombonera. The second match will be played between Fluminense and Cerro Porteño, with the Brazilians trying to defend their two-nil win from last week. The last match to be played on July 20 will feature Racing and Sao Paulo, who played out to a one-all draw at Sao Paulo's stadium.

On Wednesday, things will kick off at the Estadio Monumental in Guayaquil, where Barcelona will try to recover from their one-nil loss to Vélez last week. The second match of the evening will feature defending champions Palmeiras and Universidad Católica. The Brazilian side claimed a 1-0 victory over the Chilean crew, which gives them high hopes for success.

There will be two more games being played on Wednesday. First off, the all-Argentinean clash between Argentinos Juniors and River Plate, who put up a good show in their 1-1 draw last week. The other game set to take place on July 21 will feature Flamengo and Defensa y Justicia, with "Fla" trying to hold on to the one-goal lead they earned last week.

The last game of this stage will be played at Beira-Rio Stadium, with Internacional and Olimpia trying to win the last ticket to the Quarter-finals. The first leg between these teams ended in a goalless draw.

Are you ready to keep track of all the action in the return legs of the 2021 Copa Libertadores? Have a look at kickoff times and broadcast details for all games listed below by clicking on the one you want to watch.