Paulo Carvallo defeated Marco Osorio 2-6 6-3 6-3 in the MEX vs PAR round robin on hard.
Carvallo P. came through in three sets.
Paulo Carvallo beat Marco Osorio 2-6 6-3 6-3. Umpiry, "Paulo Carvallo vs Marco Osorio — MEX vs PAR Round Robin", https://umpiry.com/match/1999-04-02/carvallo-vs-osorio-mex-vs-par-rr?utm_source=cite (as of 2 April 1999).