Marc Sieber defeated Vadim Alekseenko 6-0 6-0 in the Czech Republic F2 qualifying round on clay.
Sieber M. took it in straight sets.
Marc Sieber beat Vadim Alekseenko 6-0 6-0. Umpiry, "Marc Sieber vs Vadim Alekseenko — Czech Republic F2 Qualifying Round", https://umpiry.com/match/2012-05-14/alekseenko-vs-sieber-czech-republic-f2-qf?utm_source=cite (as of 14 May 2012).