Herve Grenier defeated Michal Piekos 6-1 6-3 in the Poland Masters 4 round of 16 on clay.
Grenier H. took it in straight sets.
Herve Grenier beat Michal Piekos 6-1 6-3. Umpiry, "Herve Grenier vs Michal Piekos — Poland Masters 4 Round of 16", https://umpiry.com/match/1993-06-27/grenier-vs-piekos-poland-masters-4-r16?utm_source=cite (as of 27 June 1993).