The Grodzisk Goblins are a European Quidditch team from Grodzisk in Poland (QA8).
The famous Seeker Josef Wronski, who created the dangerous Wronski feint move, played for the Goblins (QA8).
There are several towns and villages with the name "Grodzisk" in Poland. Grodzisk Wielkopolski is the home of a football club, but otherwise there are no other sports teams (including Quidditch) listed in any of their Wikipedia entries (Wikipedia).
From the Web
Pottermore feature: Quidditch collection
Harry Potter Wiki: Quidditch
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Tags: competitions/competitors dangerous famous innovation international sports teams