The New York Knicks are assured a spot in the Eastern Conference play-offs for the first time in eight years after the Cleveland Cavaliers beat the Boston Celtics 102-94 on Thursday.
Boston's defeat sealed a top-six finish for the Knicks, while the Celtics are likely to have to come through the new play-in tournament, for sides placed seventh to 10th, to seal their place in the play-offs.
The Atlanta Hawks also sealed a post-season return after a five-year absence.
They overcame the Washington Wizards 120-116 in a game that had play-off implications for both sides.
John Collins' three-pointer with 24.8secs remaining helped Atlanta secure the crucial comeback win that saw them move a half-game ahead of Miami and New York in their battle for fourth spot in the Eastern Conference, and home-court advantage in the first round.
The loss means the Wizards will miss out on the East play-in tournament, keeping Chicago's hopes alive.
Meanwhile, Kyle Kuzma ensured the Los Angeles Lakersremain in contention for direct entry to the play-offs.
His layup with 6.9ecs left earned them a 124-122 victory over the Houston Rockets, which leaves the seventh-placed Lakers a game behind Dallas and Portland.
Elsewhere, James Harden scored 18 points, contributed 11 assists and came up with seven rebounds on his return from a hamstring injury as the Brooklyn Nets beat the San Antonio Spurs 128-116.
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