Tigres' tenure at the top of the Mexican Clausura was given a boost after both Morelia and Guadalajara dropped points, with both games containing pivotal late goals.
Santos Laguna marched into the final of the Torneo Bicentenario with a 7-1 second-leg demolition of Morelia with Oribe Peralta scoring a hat-trick.
Estudiantes were held away to Bolivar as a lively Chilean derby ended all square, while Racing and Deportivo Cuenca beat Cerro Porteno and Morelia.