Śląsk Wrocław (Polish pronunciation: [ˈɕlɔ̃sk ˈvrɔt͡swaf]) is a Polish football club based in Wrocław that plays in Ekstraklasa, the highest level of the Polish football league system. The club was founded in 1947 and has competed under many names since then; adopting the name Śląsk Wrocław ten years after their foundation. In 1977, Śląsk Wrocław won the Polish league championship for the first time. The club has also won the Polish Cup twice, the Polish SuperCup twice and the Ekstraklasa Cup once. The club's home is Stadion Miejski, a 42,771 capacity stadium in Wrocław which was one of the host venues during UEFA Euro 2012. Club previously played at Olympic Stadium and Stadion Oporowska. Śląsk Wrocław is ranked 9th in the Ekstraklasa all-time table.