The Boston Celtics have signed reserve forward Sam Hauser to a four-year, $45 million contract extension, recognizing his sharpshooting skills that include a 42.4% three-point shooting rate in the 2023-24 season. Hauser's extension places the Celtics well above the luxury tax threshold, emphasizing his importance in the team's future plans alongside Jayson Tatum and Jaylen Brown. This move solidifies the Celtics' core lineup for years to come, ensuring roster stability and continuity. Hauser's journey from an undrafted player to a key piece in the Celtics' rotation highlights his growth and value to the team's success. Discussions surrounding Hauser's contract extension reflect broader NBA offseason considerations, player evaluations, and the impact of ownership changes on team dynamics and financial decisions.