We now know when the Celtics will tip off their NBA Cup action, as well as a spot in the NBA's debut night on Amazon Prime.

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. 24 when they face off against the Knicks at Madison Square Garden during opening week.

The Atlantic Division rivals are grouped with the Orlando Magic, Detroit Pistons, and another division foe, the Brooklyn Nets, in East Group B in the in-season tournament.