The Boston Celtics are on the verge of a historical comeback when they host the Miami Heat tonight.
The Celtics will attempt to be the first team to recover from being 3-0 down to win an NBA 7 game series playoff.
Heat won the first three games in a dominant fashion but Celtics have recovered to level the series at 3 a-piece.
The winner of the Eastern Conference will play the Denver Nuggets in the NBA finals which start on Thursday.