The Celtics open their regular season by hosting the 76ers on Oct. 22 at TD Garden. Notably, the Celtics won’t play on Christmas Day for the first time since 2015. Of the five holiday games, only one of them feature East teams.

The Celtics will play in Group B in the Eastern Conference with four matchups (two home, two away) coming as part of their regular season schedule. Boston will also be in the first NBA matchup televised on Amazon Prime on Oct.

The NBA Cup can also tell us something about teams we may want to keep an eye on in May and June. Last December, the Oklahoma City Thunder were playing in the NBA Cup Finals (but had an off night and fell to Giannis Antetokounmpo and the Milwaukee Bucks;