Juan Pablo Yunis defeated Nicolas Jara Lozano 6-3 7-5 in the Argentina F1 round of 16 on clay. The upset overturned the form book — Nicolas Jara Lozano came in leading the head-to-head 1–0. Juan Pablo Yunis claimed a first win over Nicolas Jara Lozano in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-07-21 | Paraguay F3 | QF | clay | Nicolas Jara Lozano | 6-4 6-3 |