Hector Mancilla scored a stoppage-time winner to give UANL Tigres a 2-1 win at America on Sunday in the third round of the Mexican Clausura championship.
Lucas Lobos gave Tigres the lead after escaping in the box and shooting past Guillermo Ochoa in the 37th minute, but Montenegro equalized five minutes after halftime. Mancilla stole the points with almost the game's last kick.
"I'm very happy and I'd like to thank my teammates for putting in a great effort to earn this important achievement," said Mancilla, who scored his second goal for Tigres since joining from Toluca in the midseason break.
A minute before Mancilla's goal, Angel Reyna had an opportunity to put America ahead but was bundled off the ball amid appeals for a penalty. Replays suggested the contact was minimal.
Elsewhere, Puebla won 2-0 at home against Estudiantes Tecos, while Toluca had a 2-0 home win against Chiapas.
In Friday and Saturday results, it was: Necaxa 0, Atlas 1; Cruz Azul 3, UNAM Pumas 3; Monterrey 1, Atlante 0; Queretaro 0, Morelia 3; Guadalajara 1, San Luis 1; and Santos 1, Pachuca 1.
San Luis is currently the only team with maximum points.
In Toluca, Nestor Calderon opened the scoring against Chiapas with a dipping shot from 30 yards (meters) that flew over goalkeeper Jorge Villalpando and into the top corner in the 61st minute.
A minute later, Jaime Ayovi advanced into the box, cut inside his marker and hit a diagonal shot into the corner to make it 2-0.
Also Sunday, Puebla took the lead against Estudiantes Tecos when Edgar Lugo fired into the roof of the net in the 57th minute.
Felix Borja added a second after racing onto a long ball and heading past Christian Martinez in the third minute of stoppage time.
After three matches, the Primera Division is still taking shape.
In Mexico, the 18 clubs are split into three groups as well as a general table. At the end of the tournament, the top two teams in each group along with the two best-placed teams in the general table that haven't qualified directly contest end-of-season playoffs to decide the champion.
Reigning title holder Monterrey registered its first win of the new tournament with Saturday's 1-0 home win against Atlante.
So far in the Clausura standings, Tigres leads Group 1 with seven points, Atlas tops Group 2 with nine, while Pumas heads Group 3 with five points.
