BOSTON — Before the Orlando Magic left Florida to begin their first-round playoff matchup against the Boston Celtics, they felt they had learned valuable lessons last spring about the mental side of an NBA postseason series.

The win was all the more impressive in a game that never felt in danger of being lost despite the absence of Jayson Tatum.

The one concern for Boston on the night was Porziņģis catching an inadvertent elbow from Goga Bitadze in the third quarter, leaving him with a bloody forehead. Porziņģis did return in the fourth quarter.