| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| D | Fabricio Coloccini | 1982-01-22 | 184 | 83 | |||
| D | Gonzalo Rodríguez | 1984-04-10 | 178 | 70 | |||
| D | Marcos Angeleri | 1983-04-07 | 182 | 68 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 5.Jul | Fabricio Coloccini (D) | Newcastle United | San Lorenzo de Almagro | Confirmed | |
| 1.Feb | Marcos Angeleri (D) | Málaga CF | San Lorenzo de Almagro | Confirmed | |
| 5.Aug | Gonzalo Veron (F) | San Lorenzo de Almagro | New York Red Bulls | Confirmed | |
| 17.Jan | Nicolás Blandi (F) | San Lorenzo de Almagro | FC Evian Thonon Gaillard | Confirmed | |
| 6.Jan | Franco Mussis (M) | FC København | San Lorenzo de Almagro | Confirmed | |
| 21.Aug | Santiago Gentiletti (D) | San Lorenzo de Almagro | SS Lazio | Confirmed | |
| 16.Aug | Cristian Àlvarez (GK) | San Lorenzo de Almagro | Rayo Vallecano | Confirmed | |
| 3.Jul | Pablo Barrientos (M) | Catania Calcio | San Lorenzo de Almagro | Confirmed | |
| 2.Jul | Ignacio Piatti (M) | San Lorenzo de Almagro | Montreal Impact FC | Confirmed | |
| 26.Jun | Cristian Àlvarez (GK) | San Lorenzo de Almagro | Rayo Vallecano | Rumour |