Celtics HC Joe Mazzulla explains why he tried to block Royce O'Neale's shot

Boston Celtics head coach Joe Mazzulla attempted to block Royce O'Neale's shot during a game against the Phoenix Suns. Mazzulla emphasized the team's collective effort in contesting shots, including coaches. Players like Jayson Tatum and Xavier Tillman praised Mazzulla's focus and understanding of shooters' rhythms.