Real Garcilaso moved a step closer to the Copa Libertadores knockout stages with a 5-1 thrashing of Cerro Porteno on Wednesday.
The Peruvian outfit moved to second in Group 6 with the resounding win, and they sit three points clear of third-placed Deportes Tolima with a game remaining.
Oscar Gamarra scored a brace at Estadio Garcilaso, with the hosts netting three times in the second half.
It was Gamarra who got the scoring underway, heading a Fabio Ramos free-kick into the bottom corner.
Cerro Porteno, without a point in the group, equalised four minutes later through Roberto Nanni, who scrambled in from close range.
But Real Garcilaso restored their lead eight minutes before half-time when Mauricio Montes tapped in a cross from Victor Ferreira, who had gone on a fine run down the left.
Ferreira scored the third with a header, left unmarked inside the area to nod in an Edwin Retamoso cross.
Ramos' 30-yard free-kick in the 77th minute and Gamarra's long-range effort soon after completed the scoring.
Gremio are second in Group 8 after a 0-0 draw at home to fellow Brazilian side Fluminense.
Fluminense top the group on eight points, one clear of Gremio and Chilean side Huachipato with one group game remaining.
Corinthians grabbed top spot in Group 5 as goals from Romarinho, Paolo Guerrero and Edenilson gave them a 3-0 win at home to San Jose.
Tijuana finished second with Fidel Martinez's 93rd-minute winner seeing them to a 1-0 victory over Millonarios.