Celtics' collective effort secures their 18th NBA championship in 2023-24.
Coach Mazzulla emphasizes teamwork throughout playoffs, leading to success.
Celtics clinch title with 106-88 victory over Mavericks in Game 5.
Brown, Tatum, Horford, and Holiday lead Celtics with standout performances.
Hauser and Pritchard's crucial 3-pointers highlight Celtics' bench strength.
Despite injuries, Porzingis contributes valuable minutes in the Finals.
Coach Mazzulla acknowledges important contributions from every player.
Brad Stevens' roster adjustments key to Celtics' championship success.