In Ciudad Del Este, Paraguay, Ronaldo and Rivaldo scored, and Dida saved a penalty kick for the second time in the tournament as Brazil beat Argentina, 2-1, yesterday to advance to the semifinals of Copa America, South America's soccer championship.

Argentina went ahead in the 10th minute when a long shot by Juan Pablo Sorin bounced off the knee of defender Joao Carlos and into the net.

Rivaldo tied it with a free kick in the 32nd minute after Cafu was tripped at the top of the penalty area. Ronaldo then scored the go-ahead goal three minutes into the second half after Emerson streaked up the middle and passed to Ze Roberto, who left the ball for the oncoming forward.

Dido saved the penalty kick by Roberto Ayala with 13 minutes remaining. He also stopped a penalty kick during a 1-0 victory over Chile in the first round.

Brazil plays Mexico in the semifinals Wednesday. A day earlier, Chile plays Paraguay in the first semifinal.

In yesterday's other quarterfinal, Pedro Reyes scored twice, and Ivan Zamorano got the winner as Chile upset Colombia, 3-2, in Luque, Paraguay.

As Marcelo Salas sat out the second game of a two-game suspension, Chile twice rallied.

After Jorge Bolano's goal put Colombia ahead in the seventh minute, Reyes tied it in the 25th with a header off Jose Luis Sierra's corner kick.

Victor Bonilla put Colombia back ahead 10 minutes later, tapping the ball past goalkeeper Marcelo Ramirez.

Reyes tied it again four minutes into the second half when he headed in a perfect cross from Sierra. Zamorano put Chile ahead in the 64th, slipping through the defense and eluding goalkeeper Miguel Calero with a subtle feint.

* MLS: Roy Myers tallied his first game-winning goal in Major League Soccer to lead the Los Angeles Galaxy to a 5-2 victory over the New England Revolution in Foxboro, Mass.

The Galaxy has won five of its last six and heads into the all-star break in fourth place in the Western Conference.

Clint Mathis, Ezra Hendrickson, Carlos Hermosillo and Cobi Jones also scored goals for Los Angeles. Jones added two assists, giving him 103 career MLS points in his four seasons with the Galaxy.

Hermosillo's goal in the 90th minute was his fourth in five matches since rejoining the Galaxy for the 1999 season. Los Angeles has won every game in which he has scored this year.

The Galaxy continues to dominate the series between the teams with an 8-2 edge in all-time regular season meetings, including 2-0 this season.

CAPTION: Chilean defender Pedro Reyes, right, is mobbed by teammates after scoring second of two goals.