Juan Carlos Ferrero defeated Oscar Martinez Dieguez 6-4 6-1 in the Spain 2 Masters 3 round of 32 on clay. The upset overturned the form book — Oscar Martinez Dieguez came in leading the head-to-head 1–0. Juan Carlos Ferrero claimed a first win over Oscar Martinez Dieguez in two meetings, levelling the head-to-head at 1–1.
Ferrero J. took it in straight sets.
Juan Carlos Ferrero beat Oscar Martinez Dieguez 6-4 6-1. Umpiry, "Juan Carlos Ferrero vs Oscar Martinez Dieguez — Spain 2 Masters 3 Round of 32", https://umpiry.com/match/1998-01-30/dieguez-vs-ferrero-spain-2-masters-3-r32?utm_source=cite (as of 30 January 1998).