Christopher Heyman defeated Juan Carlos Saez 6-4 4-6 7-6 in the Belgium F8 round of 16 on clay. The upset overturned the form book — Juan Carlos Saez came in leading the head-to-head 1–0. Christopher Heyman claimed a first win over Juan Carlos Saez in two meetings, levelling the head-to-head at 1–1.
Heyman C. came through in three sets.
Christopher Heyman beat Juan Carlos Saez 6-4 4-6 7-6(5). Umpiry, "Christopher Heyman vs Juan Carlos Saez — Belgium F8 Round of 16", https://umpiry.com/match/2017-08-07/heyman-vs-saez-belgium-f8-r16?utm_source=cite (as of 7 August 2017).