Scott Griekspoor defeated Yannick Mertens 6-3 6-3 in the Germany F14 round of 16 on hard. The upset overturned the form book — Yannick Mertens came in leading the head-to-head 1–0. Scott Griekspoor claimed a first win over Yannick Mertens in two meetings, levelling the head-to-head at 1–1.
Griekspoor S. took it in straight sets.
Scott Griekspoor beat Yannick Mertens 6-3 6-3. Umpiry, "Scott Griekspoor vs Yannick Mertens — Germany F14 Round of 16", https://umpiry.com/match/2017-10-09/griekspoor-vs-mertens-germany-f14-r16?utm_source=cite (as of 9 October 2017).