Mert Naci Turker defeated Sandro Kopp 2-6 6-4 6-0 in the Turkey F17 round of 32 on clay.
Turker M. came through in three sets.
Mert Naci Turker beat Sandro Kopp 2-6 6-4 6-0. Umpiry, "Mert Naci Turker vs Sandro Kopp — Turkey F17 Round of 32", https://umpiry.com/match/2018-04-30/kopp-vs-turker-turkey-f17-r32?utm_source=cite (as of 30 April 2018).