Emilio Viuda Hernandez defeated German Lopez 3-6 6-2 6-2 in the Spain 1 Masters 4 qualifying round on clay. The upset overturned the form book — German Lopez came in leading the head-to-head 1–0. Emilio Viuda Hernandez claimed a first win over German Lopez in two meetings, levelling the head-to-head at 1–1.
Viuda Hernandez E. came through in three sets.
Emilio Viuda Hernandez beat German Lopez 3-6 6-2 6-2. Umpiry, "Emilio Viuda Hernandez vs German Lopez — Spain 1 Masters 4 Qualifying Round", https://umpiry.com/match/1998-01-03/hernandez-vs-lopez-spain-1-masters-4-qf?utm_source=cite (as of 3 January 1998).