Monterrey, who have 26 points from 11 matches, hold a six-point lead in Group Two over Morelia, who were upset 1-0 at home by lowly Atlante. Morelia's Mexico striker Miguel Sabah missed a fourth-minute penalty.
Guadalajara have taken only one point since their record start of eight successive wins but lead Group One by nine points from Atlas, upset 1-0 at home by Estudiantes UAG.
Paraguay's Osvaldo Martinez put in-form Monterrey ahead with a penalty three minutes into the second half at Guadalajara's Tecnologico stadium.
Mexico striker Javier Hernandez pulled one back three minutes later with a bicycle kick from a corner, taking his tally as the championship's top scorer to nine.
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