Jayson Tatum led Boston with 23 points and 12 rebounds. Brown scored 19 points and Schroder had 16 points and eight assists for Celtics.
Rookie guard Josh Giddey added 19 points for the Thunder, who jumped on a weary Nets team to snap a five-game losing streak.
Milwaukee Bucks never trailed while racing to a 77-38 halftime advantage and handing the Warriors their fourth loss in five games..
Miami coach Erik Spoelstra said his players haven't used injuries and COVID-19 protocols as reasons they shouldn't win.
''For the second game in a row, our defense let us down,'' Los Angeles Lakers coach Frank Vogel said after the loss.
Suns won despite allowing Raptors 15 more field goal attempts, and letting the Raptors grab a season-high 22 offensive rebounds.
The Clippers won despite managing a meagre 28 points in the lowest-scoring first half in the NBA this season.
For the Grizzlies and Morant, they kept their winning streak alive and moved even closer to the third spot in the Western Conference.
Thanks to Embiid, the Sixers extended their winning streak to a season-long seven games, and improved to 23-16.
Cleveland led going into the fourth quarter, fell behind by three, then went on a 14-2 run to take a comfortable lead.