Stefan Seifert defeated Denis Matsukevitch 6-2 6-2 in the Poland F1 semi-final on hard.
Seifert S. took it in straight sets.
Stefan Seifert beat Denis Matsukevitch 6-2 6-2. Umpiry, "Stefan Seifert vs Denis Matsukevitch — Poland F1 Semi-final", https://umpiry.com/match/2013-07-29/matsukevitch-vs-seifert-poland-f1-sf?utm_source=cite (as of 29 July 2013).