The Boston Celtics secured a 95-94 win over the Orlando Magic and even their Eastern Conference semi-final series at 2-2.

With the NBA Champions seconds away from a third defeat in their best-of-seven series, Glen Davis collected a pass from Paul Pierce and fired a 21-foot jumper over an on-rushing Rashard Lewis to beat the buzzer unleash wild scenes on the court and silence the Orlando crowd.

Just moments beforehand Lewis had given Orlando the lead with 11.3 seconds remaining with a pair of free throws, overturning a six-point deficit for his side coming into the final quarter.

Davis finished the game with 21 points while Pierce led the Celtics with 27 and Rajon Rondo also poured in 21 points while pulling down 14 boards.

Dwight Howard had 23 points and 17 rebounds and Lewis scored 22 for the Magic, who travel to Boston for Game Five on Tuesday.