Johan De Beer defeated Marius Barnard 6-4 6-3 in the USA 3 Masters 3 round of 16 on hard.
De Beer J. took it in straight sets.
Johan De Beer beat Marius Barnard 6-4 6-3. Umpiry, "Johan De Beer vs Marius Barnard — USA 3 Masters 3 Round of 16", https://umpiry.com/match/1991-06-03/barnard-vs-beer-usa-3-masters-3-r16?utm_source=cite (as of 3 June 1991).