The NBA champion Boston Celtics launch their bid for a title repeat in a playoff landscape altered by the emergence of the Cleveland Cavaliers and Oklahoma City Thunder, and the intriguing threat of the new-look Los Angeles Lakers.

The Thunder and Celtics seem destined for the Finals, but can teams like the Cavaliers, Warrior or Lakers upend that?

The Boston Celtics will face the Orlando Magic in the first round of the NBA playoffs, after the Magic beat the Atlanta Hawks in the play-in tournament Tuesday night to claim the 7-seed in the Eastern Conference. Game 1 of the Celtic-Magic series will be Sunday at TD Garden.