The hosts need a quick response after going down to their first defeat of the season at the weekend and surrendering sole control of the summit
Serie A is the top level of football in Ecuador, with 16 teams from across the country fighting it out in the 2021 edition which started Friday.
All games are live streamed on Fanatiz and you can sign up to watch free here.
The new campaign will be divided into two stages, with a winner crowned at the end of each phase.
The two victors will then advance to the finals in order to dispute the title of champion at the end of the year.
Barcelona beat out Guayaquil arch-rivals Emelec in the Second stage of the 2020 season to book their place in the final against LDU Quito, who ran out winners in the first half of the year.
Both legs of the finals ended in stalemate, and Barcelona eventually triumphed 3-1 on penalties to lift their first Serie A crown since 2016.
Four consecutive wins took them to the summit in the current campaign, but results have slowed down in recent weeks and they now share the summit with Emelec after seven games, having lost for the first time at the weekend against Deportivo Cuenca.
Aucas sit ninth in Serie A, with two wins, three draws and two defeats so far in the season.
Deportivo Cuenca vs Barcelona is available to stream worldwide on Fanatiz, where you can sign up for a 7-day free trial.
You can watch all of the 2021 Serie A season live on Fanatiz.
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Watch Serie A live on Fanatiz.