Stefan Koubek defeated Andrey Dernovskiy 6-0 6-3 3-6 6-1 in the AUT vs UKR round robin on hard.
Koubek S. came through in four sets.
Stefan Koubek beat Andrey Dernovskiy 6-0 6-3 3-6 6-1. Umpiry, "Stefan Koubek vs Andrey Dernovskiy — AUT vs UKR Round Robin", https://umpiry.com/match/2001-09-21/dernovskiy-vs-koubek-aut-vs-ukr-rr?utm_source=cite (as of 21 September 2001).