Oscar Martinez Dieguez defeated Juan Giner 3-6 7-6 6-3 in the Spain 4 1 round of 32 on clay. The upset overturned the form book — Juan Giner came in leading the head-to-head 2–0. Oscar Martinez Dieguez claimed a first win over Juan Giner in three meetings, narrowing the head-to-head to 2–1.
Martinez Dieguez O. came through in three sets.
Oscar Martinez Dieguez beat Juan Giner 3-6 7-6(5) 6-3. Umpiry, "Oscar Martinez Dieguez vs Juan Giner — Spain 4 1 Round of 32", https://umpiry.com/match/2000-04-07/dieguez-vs-giner-spain-4-1-r32?utm_source=cite (as of 7 April 2000).