Federico Sansonetti defeated Alejandro Fabbri 3-6 7-5 6-1 in the Argentina F15 round of 16 on clay. The upset overturned the form book — Alejandro Fabbri came in leading the head-to-head 6–0. Federico Sansonetti claimed a first win over Alejandro Fabbri in seven meetings, narrowing the head-to-head to 6–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-09-21 | Argentina F16 | QF | clay | Alejandro Fabbri | 1-6 6-4 7-5 |
| 2008-12-08 | Argentina F18 | R16 | clay | Alejandro Fabbri | 6-7(2) 6-2 6-2 |
| 2008-12-01 | Argentina F17 | QF | clay | Alejandro Fabbri | 6-4 6-2 |
| 2007-10-01 | Argentina F17 | R16 | clay | Alejandro Fabbri | 6-4 6-3 |
| 2006-11-20 | Uruguay F3 | R16 | clay | Alejandro Fabbri | 6-2 6-2 |
| 2006-05-15 | Argentina F7 | R32 | clay | Alejandro Fabbri | 6-4 7-6(4) |