liceo argentino signed gelatini to their youth system in 1988, with the midfielder having subsequent stints with unión de pérez, renato cesarini and mitre de pérez. in 2002, gelatini joined tiro federal of torneo argentino a. he was part of the club's squad as they rose up to primera b nacional in 2002–03 as champions. torneo argentino b's 9 de julio loaned gelatini in 2004, with a total of two goals in twenty-two fixtures arriving for them. while with 9 de julio, tiro federal were promoted to the argentine primera división. he subsequently made thirteen appearances in the top-flight before being released in 2007.