Rodrigo Antonio Grilli defeated Alexandre Bonatto 6-3 7-5 in the Brazil F7 round of 16 on clay. The upset overturned the form book — Alexandre Bonatto came in leading the head-to-head 2–0. Rodrigo Antonio Grilli claimed a first win over Alexandre Bonatto in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-04-28 | Brazil F2 | R16 | clay | Alexandre Bonatto | 7-5 6-1 |
| 2008-04-21 | Brazil F1 | R32 | clay | Alexandre Bonatto | 6-3 6-2 |