He helped Inter win the Coppa Italia during his first season with the club, playing regularly as a defensive midfielder, partnered in the middle of Inter's midfield with fellow Argentine Juan Sebastián Verón.
Dia membantu Internazionale memenangkan Coppa Italia di musim pertamanya dengan klub, bermain secara teratur sebagai gelandang bertahan, berpasangan di tengah lini tengah Inter dengan sesama asal Argentina Juan Sebastián Verón.