Game 1 will mark the 68th playoff matchup between Boston and New York, with the Celtics winning 36 of the past 67 games. The Knicks won two of the past three postseason series and have advanced to the second round of the NBA playoffs for the third consecutive season.

Preview capsule on the Boston-New York Eastern Conference semifinal series that starts Monday. Schedule: Game 1 at Boston, Monday; Game 2 at Boston, Wednesday; Game 3 at New York, Saturday; Game 4 at New York, May 12; Game 5 at Boston, May 13 (if necessary); Game 6 at New York, May 16 (if necessary); Game 7 at Boston, May 19 (if necessary).