The NBA offseason is officially off and running, and the Boston Celtics have taken center stage. One day after agreeing to trade Jrue Holiday to the Portland Trail Blazers, the Celtics have reportedly come to terms on a three-team deal that will ship Kristaps Porziņģis to the Atlanta Hawks.

The Celtics shipped the 35-year-old Holiday to the Portland Trail Blazers for the much-younger Anfernee Simons, and Holiday wasn't a fan of the move. Per Heavy Sports' Steve Bulpett, one source said Holiday is "pissed" about being traded to Portland.

The Celtics got a solid haul for the UCLA alum given the $104 million still owed to Holiday over the next three seasons.