River Plate passage marred by trouble - 10:45 AM, May 5, 2006

The Argentinian side were leading Corinthians 3-1 in their second leg encounter when fans of the Brazilian side invaded the pitch and fighting broke out in the 83rd minute. With the aggregate score at 6-2, the referee brought the game to a halt and awarded the win to River Plate.

Corinthians had led at the break courtesy of a Nilmar strike seven minutes before half-time. But any hopes of winning the tie were crushed as the visitors scored three times before the game's premature end.

A Coelho own goal sparked the collapse and Gonzalo Higuian helped himself to two goals as River Plate cruised into the next round.

Elsewhere, Argentinian outfit Estudiantes booked their place in the quarter-finals by edging past Brazilian side Goias despite a 3-1 defeat, winning on the away goals rule.

Second-half goals from Vitor and Nonato had put Goias level on aggregate at 2-2, but Jose Luis Calderon's 76th-minute header ruled out penalties to give Estudiantes their all-important away goal.

An injury-time strike from Juliano made it 3-1 to Goias but it proved little more than consolation.

Finally, Libertad of Paraguay progressed to the next round buy beating Mexican side Tigres 5-3 on the penalties after both legs ended goalless.