Pellerano comes in just days after veteran holding midfielder Egidio Arevalo was sold to Serie A outfit Palermo.
The 30-year-old will experience life abroad for the first time, as the former Independiente man has previously played for seven professional clubs in Argentina.
Pellerano will once again hook up with manager Antonio Mohamed, who has managed the Mexican club since 2011 but coached the midfielder at Colon de Santa Fe as well as Independiente.
With the signing of Pellerano, Tijuana has filled its quota for non-Mexican players prior to the start of the Liga MX's Apertura 2012 season.
Defenders Javier Gandolfi and Pablo Aguilar, striker Duvier Riascos as well as winger Fidel Martinez join Pellerano in making up the foreigner list.
American-born players Joe Corona, Greg Garza and Edgar Castillo do not take up a foreigner slot due to their dual Mexican citizenship.
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