From its opening until 2015, it was home to HC Slavia Prague of the Czech Extraliga. Slavia won the national championship on home ice in Game 7 of the 2008 Extraliga finals against HC Karlovy Vary 4-0 in front of a then-league-record crowd of 17,117. In 2015, Slavia was relegated to the 1.liga, and the club chose to move back to the smaller Zimní stadion Eden, the team's former home and current training centre. In its place, O2 Arena reached an agreement with cross-town rivals Sparta Prague on 24 June 2015. Sparta ownership cited the need for significant renovations at Tipsport Arena as the main reason for the move.