The Zdzisław Krzyszkowiak's City Stadium is a multi-use stadium in Bydgoszcz, Poland. It was completed in 1960 with a capacity of about 35,944 on wooden benches. The stadium was completely rebuilt in 2007–2008, and the current seating capacity is 20,187 people. It is currently used for football matches and track and field events. The stadium is named after Polish Olympic gold medal-winning runner Zdzisław Krzyszkowiak.

The 2017 UEFA European Under-21 Championship was the 21st edition of the UEFA European Under-21 Championship, a biennial international youth football championship organised by UEFA for the men's under-21 national teams of Europe. The final tournament was hosted in Poland for the first time, after their bid was selected by the UEFA Executive Committee on 26 January 2015 in Nyon, Switzerland. The tournament took place from 16–30 June 2017. Players born on or after 1 January 1994 were eligible for the tournament.