Robert Witz defeated Mario Mertens 7-6 6-4 in the Mexico 3 Masters 2 round of 16 on hard.
Witz R. took it in straight sets.
Robert Witz beat Mario Mertens 7-6 6-4. Umpiry, "Robert Witz vs Mario Mertens — Mexico 3 Masters 2 Round of 16", https://umpiry.com/match/1993-09-18/mertens-vs-witz-mexico-3-masters-2-r16?utm_source=cite (as of 18 September 1993).