Memphis beat New York 103-95 on Saturday night in the first game between the teams since the NBA suspended Grizzlies forward Matt Barnes for two games for his fight with Knicks coach Derek Fisher in October.
Barnes finished with two points and nine rebounds in 26 minutes.
Marc Gasol had 37 points and eight rebounds to help the Grizzlies to their fourth win in five games. He was 15 for 29 from the field.
Kristaps Porzingis led the Knicks with 17 points, while Kyle O'Quinn added 15 points, missing only one of his six shots. Derrick Williams had 13 points.
The Knicks played without leading scorer Carmelo Anthony, who missed his second straight game with sprained right ankle.
The league announced last month that it was suspending Barnes for two games without pay for what it said was a "physical altercation" with Fisher and for "threatening" the coach in October.