| From | Team | Fee | Apps | Goals | To | |
|---|---|---|---|---|---|---|
| 2003 | Vélez Sarsfield | - | 99 | 28 | 2007 | (Player) |
| 2003 | Velez Sarsfield | - | 73 | 22 | 2007 | (Player) |
| 2007 | Al-Sadd | - | 6 | 4 | 2009 | (Player) |
| 2008 | Birmingham City | Loan | 14 | 4 | 2008 | (On loan) |
| 2008 | Lazio | - | 104 | 25 | 2013 | (Player) |
| 2011 | Inter Milan | Loan | 22 | 2 | 2012 | (On loan) |
| 2013 | Vélez Sarsfield | - | 28 | 18 | 2014 | (Player) |
| 2013 | Velez Sarsfield | - | 28 | 18 | 2014 | (Player) |
| 2014 | West Ham United | Free | 22 | 5 | 2016 | (Player) |
| 2015 | Queens Park Rangers | Loan | 4 | 0 | 2015 | (On loan) |
| 2016 | Fiorentina | £1,600,000 | 22 | 5 | 2017 | (Player) |
| 2017 | Watford | - | 3 | 0 | 2018 | (Player) |
| 2017 | Al-Nassr | Loan | 8 | 3 | 2017 | (On loan) |
| 2018 | Vélez Sarsfield | Loan | 13 | 8 | 2018 | (On loan) |
| 2018 | Boca Juniors | - | 52 | 10 | 2021 | (Player) |
| 2021 | América | - | 16 | 1 | 2022 | (Player) |
| 2022 | Platense | - | 20 | 3 | 2022 | (Player) |
| 2022 | Esporte Clube Juventude | - | 0 | 0 | 2022 | (Player) |
| 2023 | Cosenza | - | 3 | 0 | 2023 | (Player) |