Pumas drew 1-1 with Santos on Sunday to remain undefeated in the Mexico Apertura tournament and retain first place with 11 points after five rounds.

Chivas won 2-1 at Morelia to also remain unbeaten - one point behind Pumas with a game in hand.

Monterrey held on to third place with nine points despite a 1-0 loss at San Luis, and fourth place Cruz Azul managed only a 1-1 draw at Jaguares to improve to eight points.

In other results this weekend: Tigres and America drew 2-2, Pachuca won 3-0 at home against Toluca, Estudiantes Tecos beat local rivals Atlas 2-0, Tijuana and Puebla fought out a 1-1 draw, and relegation-threatened Queretaro won 3-1 at last-place Atlante.

Pumas, the defending champions, came from behind against Santos. Striker Oribe Peralta opened the scoring for Santos with an overhead kick in the 57th, following up on his midweek goal for Mexico in a friendly against the United States.

Eduardo Herrera got the equalizer for Pumas in the 79th.

Chivas scored late to win at Morelia after being reduced to nine men following two red cards.

A swift move by the Chivas offense in the 79th caught Morelia by surprise and Antonio Gallardo beat a defender and got just enough on the ball to steer it into the net.

Tigres, also unbeaten with one win and four draws this season, was close to getting the three points against America after launching a second-half comeback.

America opened the scoring early in the first half with a back-heeled goal from Christian Benitez, but Tigres equalized in the 66th and then took the lead with just seven minutes remaining.

America got the equalizer in the last minute from Renato Gonzalez.

Monterrey fell to San Luis without Chilean striker Humberto Suazo, who was injured. Christan Sanchez scored for San Luis in the 18th.

Next weekend, Monterrey faces a difficult trip to second-place Chivas.

Jaguares, who are in danger of being relegated, got a point at home against Cruz Azul after falling behind with an own goal after five minutes. Jaguares' Ismael Fuentes equalized in the 58th.

Pachuca continued its unpredictable start to the season with a 3-0 victory against Toluca. Pachuca, which had lost two of its last three matches, opened the scoring in the 2nd minute with a goal by Enrique Esqueda. Carlos Rodriguez and Mauro Cejas also scored.

A week after Estudiantes Tecos' Jose Luis Sanchez became the first coach to be fired in the Apertura tournament, the team rallied against Atlas on Saturday, winning 2-0. Both teams are in the thick of the relegation battle.

Tijuana and Puebla both had chances in their match, but drew 1-1. Colombian Dayro Moreno opened the scoring for Tijuana with a direct freekick from the left touchline that sailed over the Puebla keeper and into the roof of the net.

Fellow Colombian Duvier Riascos equalized for Puebla.

Atlante is at the bottom of the league standings after its home loss to Queretaro, which has won its last two games.