Early years and Italy Born in
La Plata,
Buenos Aires Province, Galletti's career began with
Estudiantes de La Plata, where his father
Rubén Horacio played as a right-wing
forward during the 1970s. He scored once in 24 games in
his second season in the
Primera División. In January 1999, Galletti joined
Parma A.C. in Italy, but failed to break into the first team, moving in the following
transfer window to another club in the country,
Serie B's
S.S.C. Napoli – loaned by Estudiantes, to where he would return for the
2000–01 campaign.
Zaragoza Galletti signed with
Real Zaragoza from Spain in the 2001 off-season. He made his
La Liga debut on 26 August in a 1–2 away loss against
RCD Espanyol, and finished
his first year with 27 matches and two goals as the season ended in relegation. From there onwards, Galletti became an undisputed starter for the
Aragonese, never appearing in less than 34 contests for the remainder of his spell.
Atlético Madrid On 29 July 2005, Galletti joined fellow league side
Atlético Madrid for
€4 million. He netted his first league goal for his new team on 27 October, closing the scoresheet at home against
Cádiz CF (3–0). In
his second season with the
Colchoneros, Galletti scored four goals in 36 games as they finished in seventh position.
Olympiacos On 30 June 2007, Galletti was transferred to
Olympiacos F.C. in Greece, for a reported fee of €2.5 million, with the player signing a four-year contract with an annual salary of €1.3 million. On 2 May 2009, he scored Olympiacos‘ 4th goal of
the final of the
Greek Cup against
AEK Athens F.C. giving his team a 4–3 lead but got sent off right after that and watched his team getting equalized but eventually winning the game and the title after a thrilling penalty shoot-out; after
that campaign ended and he contributed with a career-best 14 goals to the
national championship's conquest, he signed a contract extension linking him to the
Piraeus club until 2013 – the new deal contained a release clause fee of €15 million. In early February 2010, Galletti was diagnosed with severe
kidney failure, causing him to miss the rest of
the season. He announced his retirement the following summer, aged only 30; in early October 2012, however, he underwent a successful
kidney transplant, the donor being his father Rubén. Galletti returned to Olympiacos on 3 September 2014 after an unassuming spell as player at
OFI, being appointed
scout for
Latin America. ==International career==