The ceremony has been moved due to the limited attendance allowed at home games this season due to COVID-19. The Blues will announce the new date upon release of the 2021-22 season schedule.
Pronger spent nine seasons with the Blues and was inducted into the Hockey Hall of Fame as part of the 2015 class. He will become the eighth player to have his number retired by the Blues, joining No. 3 Bob Gassoff, No. 8 Barclay Plager, No. 11 Brian Sutter, No. 24 Bernie Federko, No. 2 Al MacInnis, No. 16 Brett Hull and No. 5 Bob Plager.