Yuri Schukin defeated Stefan Koubek 6-4 6-4 in the Casablanca qualifying round of 32 on clay. The upset overturned the form book — Stefan Koubek came in defending last year's round of 32.
Schukin Y. took it in straight sets.
Yuri Schukin beat Stefan Koubek 6-4 6-4. Umpiry, "Yuri Schukin vs Stefan Koubek — Casablanca Qualifying Round of 32", https://umpiry.com/match/2011-04-02/koubek-vs-schukin-casablanca-q32?utm_source=cite (as of 2 April 2011).