Artem Smirnov defeated Marc Sieber 6-2 6-2 in the Turkey F2 round of 32 on clay.
Smirnov A. took it in straight sets.
Artem Smirnov beat Marc Sieber 6-2 6-2. Umpiry, "Artem Smirnov vs Marc Sieber — Turkey F2 Round of 32", https://umpiry.com/match/2007-04-09/sieber-vs-smirnov-turkey-f2-r32?utm_source=cite (as of 9 April 2007).