The blank banner tradition dates back to former head coach Doc Rivers, who originally arranged to mark the space where the team's 18th banner would be at the team's old practice facility in Waltham.

Jayson Tatum Speaks About the Blank Banner and Chasing #18 in 2018. Take a look back to 2018 as Jayson Tatum talks about the blank banner and how the Celtics are chasing #18! Playlist.