Juan Pablo Guzman defeated Juan Pablo Brzezicki 6-4 6-2 in the Peru F2 round of 16 on clay. The upset overturned the form book — Juan Pablo Brzezicki came in leading the head-to-head 2–1, but Juan Pablo Guzman had been the form player, winning 5 of their last 7 on clay. That levelled the head-to-head at 2–2.
Guzman J. took it in straight sets.
Juan Pablo Guzman beat Juan Pablo Brzezicki 6-4 6-2. Umpiry, "Juan Pablo Guzman vs Juan Pablo Brzezicki — Peru F2 Round of 16", https://umpiry.com/match/2000-09-04/brzezicki-vs-guzman-peru-f2-r16?utm_source=cite (as of 4 September 2000).