Barcelona and Libertad will go head-to-head at the Estadio Monumental Isidro Romero Carbo in the second round of the Copa Sudamericana.
Libertad - second in the Paraguayan Division Profesional - advanced from the first round thanks to a three-goal return leg as they overcame Nacional Potosi 3-1 on aggregate.
Speaking ahead of Thursday's opening leg in Guayaquil, Libertad coach Sarabia said he is prepared for an attacking onslaught from the hosts, who are unbeaten in 12 games on home soil.
"We have already seen videos and we know that Barcelona is a team that goes out to get a game, an offensive team," Sarabia told Radio Huancavilca.
"Barcelona is a fast team together well armed, is a team that plays well and will block attacks and defends in blocks."
Israel was in charge of Libertad during Sarabia's playing days.
"Ruben Israel is like my second father. I said someday we would face at any moment," said Sarabia.
Mario Salas' men - third in the Primera Division - had no trouble in front of goal as they beat San Jose 6-4 on aggregate.
On Wednesday, Colombian giants Atletico Nacional welcome Paraguay's General Diaz to the Estadio Atanasio Girardot.
And the Primera A side are in good form, having gone four games unbeaten after Sunday's 2-2 draw at home to Boyaca Chico.
