The Boston Celtics defeated the Indiana Pacers 114-111 on Saturday in the NBA Eastern Conference finals.
The victory gave them a 3-0 lead.
Celtics came from 18 points down to pull off the win.
On Monday game four will be played in Indianapolis.
Media reports say no side in the NBA has come from 3-0 down to win a best-of-seven play-off series.
Winners of the Eastern Conference will come up against either the Dallas Mavericks or the Minnesota Timberwolves in the NBA finals.
It’s a 2-0 lead for Dallas in the Western Conference series.
Game three will be played today Sunday.