Robert Eriksson defeated Lech Sidor 6-4 6-2 in the Poland Masters 4 round of 32 on clay. The upset overturned the form book — Lech Sidor came in leading the head-to-head 1–0. Robert Eriksson claimed a first win over Lech Sidor in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-06-27 | Poland Masters 2 | R16 | clay | Lech Sidor | 6-2 6-3 |