Morant scored six of his 26 points in the final 30 seconds, including the go-ahead basket. The Grizzlies to extend their winning streak to six.
DeMar DeRozan became the first player in NBA history to make game-winning buzzer-beaters on consecutive days.
Brown is the seventh player in team history to score 50 and the fourth Celtic to reach 50 points and 10 or more rebounds in a game.
Despite missing more than 48 combined points per game from players who were out, the Suns bolted to a 73-47 halftime lead.
The Lakers (19-19) climbed back to .500, with their 30-something veterans carrying them in the fourth quarter.
This was the first 40-point game of the season for LeBron and made him the oldest player to put up 40 points and 10 rebounds.
Burks scored 10 points during the Knicks' 14-0 run to start the fourth quarter. That gave New York a seven-point lead.
Chimeizie Metu's big moment came after Fox's last-second decision to dish the ball away after he initially thought about trying to dunk it.
Gilgeous-Alexander had the first triple-double by a Thunder player at home since Russell Westbrook during the 2018-19 season.
Curry had a nice night, scoring 30 points as the Warriors celebrated him for the 3-point record in his first home game since breaking it.