Lanus moved from the bottom to the top of Group 3 in the Copa Libertadores to keep their hopes of qualifying for the last 16 alive after a 2-0 win over Paraguayan side Cerro Porteno.
The Argentinian outfit moved level on points with Porteno and Deportivo Cali, with O'Higgins, just one point back, meaning it is all to play for in the final round. The reigning Copa Sudamericana champions were made to work hard for their win, with Porteno goalkeeper Roberto Fernandez thwarting their attackers on numerous occasions in the first half.
Heavy rain that fell at the Nestor Diaz Perez complicated matters for the hosts, but they found a way through in the 72nd minute through defender Carlos Araujo's effort from just outside the box. Oscar Junior Benitez made sure of the win in the final minute after heading home from a corner.
Lanus boss Guillermo Barros Schelotto said: "We played without thinking about the position of the group, without speculating. Lanus' success was for our own merit. The result gives us tranquillity. A draw in Chile with O'Higgins (in our final group match) will allow us to qualify."
The Strongest kept their hopes of emerging from group one alive after coming back from two goals down to earn a 3-3 draw at Peruvian club Universitario. Raul Ruidiaz put the hosts ahead just before the half hour and although Diego Chavez's own goal levelled matters almost immediately afterwards, Universitario put themselves on course for their first victory of the campaign when Christofer Gonzalez fired home in the 37th minute, with Alexi Gomez extending their advantage from the penalty spot in the second half.
However, Ernesto Cristaldo halved the deficit after latching on to playmaker Pablo Escobar's through ball and slotting into the net and in the final minute, Jair Reinoso levelled matters to give the Bolivians a share of the spoils that puts them two points behind Atletico PR, whom they will play in their final group game.
Finally, Junior Sornoza's controversial last-gasp penalty rescued a 1-1 draw for Independiente Del Valle against San Lorenzo. The Argentinian visitors looked on course for victory when striker Nicolas Blandi headed home from Angel Correa's corner.
But the Ecuadorian side were given a lifeline when Emmanuel Mas brought down Daniel Angulo in the area in stoppage time, with Sornoza making no mistake from the spot.