Marc Sieber defeated Mate Delic 1-6 6-4 6-0 in the Turkey F1 round of 16 on hard. The upset overturned the form book — Mate Delic came in leading the head-to-head 1–0. Marc Sieber claimed a first win over Mate Delic in two meetings, levelling the head-to-head at 1–1.
Sieber M. came through in three sets.
Hard: Sieber M. leads 1–0 · Clay: Delic M. leads 1–0
Marc Sieber beat Mate Delic 1-6 6-4 6-0. Umpiry, "Marc Sieber vs Mate Delic — Turkey F1 Round of 16", https://umpiry.com/match/2017-01-09/delic-vs-sieber-turkey-f1-r16?utm_source=cite (as of 9 January 2017).