Gilbert Schaller defeated Oliver Gross 7-5 4-6 6-4 in the Sao Paulo round of 32 on clay.
Schaller G. came through in three sets.
Gilbert Schaller beat Oliver Gross 7-5 4-6 6-4. Umpiry, "Gilbert Schaller vs Oliver Gross — Sao Paulo Round of 32", https://umpiry.com/match/1993-11-01/gross-vs-schaller-sao-paulo-r32?utm_source=cite (as of 1 November 1993).