| Youth career | |||
|---|---|---|---|
| 1988–1993 | River Plate | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 1993–1996 | River Plate | 64 | (24) |
| 1996–2000 | Parma | 116 | (62) |
| 2000–2002 | Lazio | 54 | (39) |
| 2002–2003 | Inter Milan | 18 | (7) |
| 2003–2008 | Chelsea | 49 | (20) |
| 2004–2005 | → AC Milan (loan) | 28 | (10) |
| 2006–2008 | → Inter Milan (loan) | 49 | (18) |
| 2008–2009 | Inter Milan | 14 | (2) |
| 2009–2010 | Genoa | 16 | (5) |
| 2010–2012 | Parma | 46 | (10) |
| Total | 453 | (197) | |
| International career | |||
| 1996 | Argentina U23 | 6 | (6) |
| 1995–2007 | Argentina | 64 | (35) |
| Managerial career | |||
| 2014–2015 | Parma Primavera | ||
| 2015–2016 | Modena | ||
| 2019 | Banfield | ||
| 2020–2021 | Defensa y Justicia | ||
| 2021 | São Paulo | ||
| 2022–2023 | Al-Duhail | ||
| 2023–2024 | Al Ain | ||
| *Club domestic league appearances and goals | |||