A goal by Diego Rivarola five minutes from the final whistle gave Universidad de Chile a key win in Peru over hosts Alianza Lima in the first leg of their Copa Libertadores last 16 encounter.

Alianza dominated possession from the first minute but they were unable to create any clear-cut chances. The best ones in the first half were in Universidad's counter-attacks - a shot by Juan Manuel Olivera that came back off the crossbar in the 27th minute, and one minute later Jose Contreras missed the chance after beating the Peruvian goalkeeper.

In the second half Alianza - who have not lost a game at home in the tournament - continued with their pressure on the visitors' goal but visiting goalkeeper Miguel Pinto was equal to their best efforts. Just as a goalless draw looked on the cards, the Alianza defence were caught napping and Rivarola took advantage to score the winning goal.

Universidad coach Gerardo Pelusso said: "We beat one of the best teams from the group stage, who are even stronger at home. We have to win the second leg, we don't see football in any other way. We always want to win." A victory or any draw in Chile next week will give Universidad passage to the quarter-finals.

Meanwhile, in Brazil, a hat-trick by Thiago Ribeiro gave Cruzeiro a 3-1 win over Uruguay's Nacional. The hosts took a three-goal lead in the first half but in the second they could not continue with that rhythm and the Uruguayans cut the deficit to give them a glimmer of hope for the second leg.

Thiago Ribeiro scored his first goal in the seventh minute, taking advantage of a defensive mistake, and doubled Cruzeiro's advantage with a header. In the 41st minute, Henrique provided the assist for the striker to complete his hat-trick. Nacional played much better in the second half and Mario Regueiro pulled one back to provide a little more intrigue to the return leg in Montevideo.

Finally, in Colombia, Once Caldas had to settle for a goalless draw against Paraguay's Libertad. Chile World Cup Tickets are available online. Other than World cup football tickets you can also get Inter Milan vs Bayern Munich tickets, Champions League final tickets, FA Cup final tickets and World cup 2010 tickets from the same spot online without any headache and with guaranteed delivery of tickets at home i-e you can buy football tickets for any of your desired event or match.