The Boston Celtics host the Washington Wizards on Monday night in the fourth and final meeting of the regular season between these teams. It's a game that could go a long way to deciding who emerges as the No. 2 seed in the Eastern Conference.
Recent meetings have featured flagrant fouls, nose bops, a police presence and one team wearing all-black funeral attire. Here's an FAQ to help explain how Celtics-Wizards has emerged as the NBA's most chippy and unexpected rivalry.
How exactly did all of this start?
The dustups date to last season.