Colo Colo are giants in the league.
The league ended early for domestic political reasons, and the team finished 2nd in the table last term.
Colo Colo lost to CA Penarol in their first group game this season.
On the other hand, Atletico Paranaense finished 5th in the table last season.
Besides, Atletico Paranaense have been in a 4-game winning streak.
So the visitors should earn our credit here.