Last night, the Grizzlies had one of the worst rebounding games in NBA history. Even with Mitchell Robinson not playing for the Knicks, the Grizzlies managed only 20 total rebounds. In 79 NBA seasons, only 5 teams have ever had fewer rebounds in a game.
The Grizzlies managed just 20 rebounds as a team, compared to 49 for the Knicks – even with one of New York’s top rebounders, Mitchell Robinson, sitting out.
Sources:
https://www.statmuse.com/nba/ask/nba-least-rebounds-by-a-team-in-a-game-ever