Robbie Koenig defeated Douglas Sachs 6-4 6-3 in the USA 3 Masters 3 round of 32 on hard.
Koenig R. took it in straight sets.
Robbie Koenig beat Douglas Sachs 6-4 6-3. Umpiry, "Robbie Koenig vs Douglas Sachs — USA 3 Masters 3 Round of 32", https://umpiry.com/match/1991-06-03/koenig-vs-sachs-usa-3-masters-3-r32?utm_source=cite (as of 3 June 1991).