Andres Gomez defeated Felipe Rivera 6-4 6-4 in the Sao Paulo quarter-final on clay.
Gomez A. took it in straight sets.
Andres Gomez beat Felipe Rivera 6-4 6-4. Umpiry, "Andres Gomez vs Felipe Rivera — Sao Paulo Quarter-final", https://umpiry.com/match/1991-11-04/gomez-vs-rivera-sao-paulo-qf?utm_source=cite (as of 4 November 1991).