NBA Notebook: Mitchell Robinson's rebounding, Kevin Garnett's jersey, and Russell Westbrook's retirement

The NBA Notebook covers three topics, with a focus on Mitchell Robinson's elite offensive rebounding ability. Last season with the New York Knicks, Robinson averaged 4.2 offensive rebounds per game despite playing only 19.6 minutes per contest, ranking second in the NBA in that category. The Boston Celtics, who have intentionally fouled Robinson in the past to remove him from the floor, have now added him to their roster alongside Paul George as part of Joe Mazzulla's possession-focused system.