His nickname was "El violinista del Viaducto" (literally translated as "The violinist of the viaduct"), as he played an imaginary violin during his goal celebrations.

[2][3] His professional career, other than in his own country where he represented Boca Juniors, Ferro Carril Oeste and Arsenal de Sarandí (two spells), was spent in Spain, Greece, Uruguay, Ecuador and the United States.

Born in Murphy, Santa Fe, Caffa was part of Club Atlético Boca Juniors youth system, being already with the first team when it won the 2003 Apertura, although he only featured in one league match.

[4] He played his first La Liga match on 4 February against Athletic Bilbao,[5] but went scoreless in his six season appearances, also not finding the net in his first full campaign although he did not start regularly for the Andalusians.

[7] Again at Betis, he appeared in 32 games – although only ten starts[8]– and scored seven goals,[9] but the club failed to regain top-flight status.