PREVIEW: The Boston Celtics enter this matchup with elite defensive capabilities, ranking first in defending three-point shooting while forcing opponents into low-quality looks from deep. As the defending champions chasing consecutive titles, the Celtics have dominated early in the season with 15 wins from 18 matches, sitting second in the Eastern Conference behind only Cleveland. Boston dismantled the Los Angeles Clippers 126-94 in their most recent outing, showcasing the offensive firepower that has made them one of the league's most formidable teams. With Kristaps Porzingis back in the rotation after returning from an ankle injury, the Celtics now have their complete starting five available, positioning them as heavy favorites heading into this contest. The Chicago Bulls face a stern test on the road, coming off a disappointing loss to Orlando despite a strong offensive showing against Washington just hours prior. While the Bulls excel at rebounding defensively and moving the ball with precision, they struggle when attacking the rim efficiently and allow opponents to generate numerous scoring opportunities near the basket. Chicago's defensive vulnerabilities represent their primary concern, as they've allowed more points per game than any other team in the NBA, largely undermining their solid offensive output. The Bulls have dropped their last four meetings against Boston, surrendering over 120 points in each of the three most recent clashes, suggesting the Celtics' defensive prowess presents a significant matchup problem.