Pumas looked the better side for much of the first half, and William Yarbrough was an important factor in keeping the visitors from taking the lead. Additionally, Nacho González cleared a shot by Javier Cortés off the line in the 31st minute.
Although Pumas had more chances, León had a few good ones of their own, particularly two one-on-one situations between Carlos Peña and Pikolín Palacios. However, “Gullit” was unable to convert either of those opportunities.
In the second half, La Fiera looked better but was still unable to find the back of the net, despite good looks for Mauro Boselli and Luis Montes. Those two then combined for a comedy-of-errors opportunity late on, when Boselli fell as he took a shot and then inadvertently blocked Montes’s follow-up attempt.
Stoppage time had chances on both ends as each team looked to snatch a late winner. Guillermo Burdisso hit the post for León, but it was Pumas who found the back of the net.
In the 93rd minute, Jesús Gallardo finished off a low cross from the middle of the box to give the universitarios the last-gasp victory.
With the 0-1 win, Pumas reach six points while León remains on three.
Leon: William Yarbrough, Guillermo Burdisso, Fernando Navarro, Osvaldo Rodríguez, Juan Ignacio González, Luis Montes, Andrés Andrade, Leonel López, Christian Valdez, Carlos Peña (Elías Hernández 66′), Mauro Boselli.
Pumas: Alejandro Palacios, Josécarlos van Rankin, Gerardo Alcoba, Darío Verón, Alan Mendoza, Kevin Escamilla (Matías Britos 60′), Javier Cortés, Pablo Barrera (Santiago Palacios 83′), Abraham González, Jesús Gallardo, Bryan Rabello.