Sunil Kumar defeated Andrei Stoliarov 7-5 7-6 in the Nigeria F4 round of 32 on hard. The upset overturned the form book — Andrei Stoliarov came in leading the head-to-head 1–0. Sunil Kumar claimed a first win over Andrei Stoliarov in two meetings, levelling the head-to-head at 1–1.
Kumar S. took it in straight sets.
Sunil Kumar beat Andrei Stoliarov 7-5 7-6(2). Umpiry, "Sunil Kumar vs Andrei Stoliarov — Nigeria F4 Round of 32", https://umpiry.com/match/2007-12-17/kumar-vs-stoliarov-nigeria-f4-r32?utm_source=cite (as of 17 December 2007).