The first-round series between the Boston Celtics and Orlando Magic has devolved into a grind-it-out, physical battle. Boston, the East’s No. 2 seed, currently holds a 3-1 lead after a 107-98 Game 4 victory on Sunday, but their firm lead in this series hasn't come without costs.

The defending champions have a certain attitude, and it all starts with their head coach.Joe Mazzulla is in his third season as the Boston Celtics' head coach, and his personality has been one of the most interesting things about the team.

Much has been made about the level of physicality in the Boston Celtics vs. Orlando Magic first-round playoff series, but Boston coach Joe Mazzulla is apparently fine with it. Despite Al Horford accusing Kentavious Caldwell-Pope of intentionally knocking him to the floor in Game 2,