Argentinian outfit Arsenal booked their place in the quarter-finals of the Copa Sudamericana after a thrilling 3-2 victory over Olimpia.
A Gustavo Blanco header six minutes from full-time handed Arsenal all the points against their Paraguayan opposition, who had fought back well to level after falling 2-0 down inside 20 minutes.
After a goalless first leg, efforts by Cristian Trombetta and Emilio Zelaya put Arsenal firmly in charge of the tie before Pablo Zeballos tied things up before the interval.
Olimpia remained on the front foot in the second period but without any penetration, and they were made to pay late on when Blanco nodded home.
Arsenal, the 2007 continental champions, will now face the winner of the last-16 tie between Universidad de Chile and Flamengo.
Universidad look the most likely opposition after sweeping to a 4-0 victory in the opening leg in Brazil.
Universidad had complete control of the game in the first half, going ahead in the 14th minute through Jose Rojas.
Flamengo's task was made all the harder by the dismissal of Airton on 26 minutes for an ugly challenge on Osvaldo Gonzalez.
Eduardo Vargas doubled Universidad's lead after 41 minutes before making it three 60 seconds later.
The visitors were themselves reduced to 10 men six minutes in the second half when Francisco Castro went in hard on Willians, but Flamengo could not capitalise and conceded a fourth when Gustavo Lorenzetti fired home on 71 minutes.
In the day's other last-16 tie, Brazilians Sao Paulo defeated Libertad of Paraguay 1-0 in their first-leg encounter.
Luis Fabiano's 75th-minute strike proved the difference between the sides, and marked Sao Paulo's first win in six matches.
