Bertrand Madsen defeated Christoph Sieber 6-2 6-3 in the Caribbean 2 Masters 4 round of 32 on hard.
Madsen B. took it in straight sets.
Bertrand Madsen beat Christoph Sieber 6-2 6-3. Umpiry, "Bertrand Madsen vs Christoph Sieber — Caribbean 2 Masters 4 Round of 32", https://umpiry.com/match/1991-04-28/madsen-vs-sieber-caribbean-2-masters-4-r32?utm_source=cite (as of 28 April 1991).