Hector Moretti defeated Juan Morgenstern 1-6 6-3 6-4 in the Colombia Masters 3 qualifying round on clay. The upset overturned the form book — Juan Morgenstern came in leading the head-to-head 1–0. Hector Moretti claimed a first win over Juan Morgenstern in two meetings, levelling the head-to-head at 1–1.
Moretti H. came through in three sets.
Hector Moretti beat Juan Morgenstern 1-6 6-3 6-4. Umpiry, "Hector Moretti vs Juan Morgenstern — Colombia Masters 3 Qualifying Round", https://umpiry.com/match/1997-07-12/moretti-vs-morgenstern-colombia-masters-3-qf?utm_source=cite (as of 12 July 1997).