 Ariel came to Pumas UNAM in the first division for the Apertura 2006 season, as an Important re enforcement.Pumas were placed first in their group ( C ) and qualified to the playoffs where they were defeated in the quarter finals by Pachuca.During his time in Pumas; Ariel, Esteban Solari, and Ignacio Scocco where an important trio of forwards for Pumas in the Mexican league notably all Argentinians.