Petar Popovic defeated Sascha Hesse 4-6 7-6 7-6 in the Germany F5 round of 16 on carpet. The upset overturned the form book — Sascha Hesse came in leading the head-to-head 1–0. Petar Popovic claimed a first win over Sascha Hesse in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-07-11 | Germany F8 | R32 | clay | Sascha Hesse | 6-4 6-4 |