Joe Mazzulla, head coach of the Boston Celtics, has gained notoriety for his intense coaching style and candid press interactions. His fiery demeanor has drawn attention, especially in high-pressure moments, such as during the 2025 NBA Eastern Conference Playoffs when he urged star forward Jaylen Brown to tough it out despite injury. His comments about star big man Kristaps Porzingis also raised eyebrows, as he stated he enjoys seeing Porzingis ‘bleed on the court.’ This unfiltered approach contributes to Mazzulla's growing reputation as a passionate yet controversial figure in the NBA.