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Ekstraklasa, Poland's top-tier football league title, was captured by Henning Berg during his stint at Legia Warsaw. Berg, a prominent Norwegian footballer turned manager, joined Legia in 2011 and led them to the league championship in the 2012–13 season, ending their four-year title drought. His tactical acumen and leadership were instrumental in securing Legia's 11th league crown, a testament to his managerial prowess.