Defending champions Leon prop up the Torneo Apertura after suffering their second successive defeat of the new season as Tigres Monterrey claimed a 4-2 victory.
Leon, who were beaten in their season-opener by Club America last week, found themselves 2-0 down midway through the first half following Hernan Burbano's strikes in the 12th and 23rd minutes. Jose Cardenas pulled one back shortly afterwards before Emanuel Villa restored Tigres' two-goal advantage just before the interval and although Mauro Boselli again scored for Leon in the 57th minute, Anselmo Juninho made sure of victory for the home side eight minutes later.
Emiliano Armenteros scored six minutes after coming off the bench to lift Jaguares to a 2-1 victory over Toluca in a feisty encounter that saw both sides finish with ten men. Vicente Vuoso gave Chiapas a 27th-minute lead and although Bruno Pereira Pires saw red shortly before the interval, the home side managed to double their lead after 71 minutes through Armenteros. The sides were evened up when Miguel Ponce Briseno was sent off for Toluca, who pulled one back six minutes from time through Gabriel Farfan's own goal.
Club America claimed their second win of the season but needed a last-gasp goal from Pablo Aguilar to seal a 2-1 win over Tijuana, who remain without a point. It was Tijuana who took the lead through Juan Arango's 19th-minute penalty but Raul Jimenez levelled matters midway through the second half before Aguilar struck in the final minute.
Monterrey also needed a late goal to also move onto six points as Dorlan Pabon Rios' 90th-minute strike sealed a 1-0 win at Pachuca, while Puebla were held to a goalless draw at home to Veracruz.