He started playing football for his home town club Newell's Old Boys. He transferred to then La Liga club Cádiz CF in January 2006. He endured a rather unsuccessful spell in Spain with Cádiz relegated after the 2005-06 season. They were then unable to bounce back the following season (finishing 5th), and with the club looking to miss promotion again half-way through the 2007-08 season, Vella returned to Argentina with Vélez Sársfield for the start of the 2008 Clausura championship.