"Wladyslaw Wolfke is one to watch: a daring and graceful flier...."
-- Ginny Weasley reporting for the Daily Prophet (Pm)
By the time of Poland's first match at the 2014 Quidditch World Cup tournament against Japan, Wolfke had replaced Bonawentura Wójcik as the team's Seeker. The team lost by 350 points to 140, despite their "spirited and dynamic" play (Pm).
Daring and graceful flying
Other canon notes and references
Wladyslaw is a Slavonic name meaning "rule with glory". It is a variant of the Russian name Vladislav (Baby Namespedia).
Wolfke may derive from the Germanic word wulf, meaning "wolf". Mieczysław Wolfke is a famous Polish physicist (Wikipedia).
Prior to the start of the tournament, Italian Seeker Luciano Volpi was accused of having transfigured himself into Poland's Wójcik, but this was disproved by them appearing together at a press conference. As Wolfke then replaced Wójcik as Seeker, one does wonder whether he and Luciano Volpi ever appeared anywhere together at the same time.... (Pm)
From the Web
Screenshots of the Daily Prophet's coverage of the 2014 Quidditch World Cup: http://imgur.com/a/AXutv