MEXICO CITY (AP) -- A late free kick from Fernando Arce handed Chivas a 1-0 victory over Pumas to maintain their undefeated start to the season, while America and Monterrey are the only teams with perfect records after two rounds of the Mexican Apertura championship.
America defeated Tijuana 2-1 and Monterrey won 1-0 against Pachuca on Saturday.
In other weekend results, Tigres beat Leon 4-2, Atlas overcame Morelia 2-0, Chiapas won 2-1 against Toluca, Santos Laguna drew 1-1 with Cruz Azul, Puebla drew 0-0 against Veracruz and Leones Negros defeated Queretaro 1-0.
Arce struck the winner from 30 yards (meters) in the 87th minute, ten minutes after Chivas' Angel Reyna was sent off for his second yellow card.
Pablo Aguilar headed in deep into second half injury time to steal the points for America, which had gone behind after Juan Arango converted a penalty in the 20th minute.
Mexico international Raul Jimenez equalized for America in the 68th with a deft lofted finish.
Monterrey substitute Dorlan Pabon struck from a tight angle in the 90th minute to win a game Pachuca had largely controlled.
Colombian Hernan Burbano netted twice in the first 24 minutes for Tigres, before Jose Maria Cardenas pulled one back for reigning champion Leon.
Emanuel Villa extended the lead two minutes before halftime and Juninho sealed victory in the 65th with a direct free kick.
Both Atlas goals came in the second half, with Enrique Esqueda catching Morelia 'keeper Felipe Rodriguez off his line and beating him in the 51st and Edy Brambila adding the second in injury time.
Chiapas' Matias Vuoso opened the scoring in the 27th and Emiliano Armenteros extended the lead in the 72nd before own goal by Gabriel Farfan handed Toluca a late lifeline five minutes from the time.
Andres Renteria headed in the equalizer for Santos Laguna in the 69th after Mauro Formica had put Cruz Azul into the lead in the 14th, and former Mexico international Cuauhtemoc Blanco came on in the 63rd for Puebla, which pushed for the late winner over Veracruz.
Brazilian Camilo Sanvezzo volleyed in for Queretaro in the 60th in its win against Leones Negros.