Basketball: Celtics even up series with Miami

Boston Celtics' Rajon Rondo dumps off the ball as he is pressured by Miami Heat's Shane Battier during game four in the NBA basketball Eastern Conference finals playoffs series. Photo / AP

The Boston Celtics have evened the NBA's Eastern Conference finals series with a 93-91 overtime victory over the Miami Heat in game four.

The Celtics had led by as many as 18 points earlier in the game, before the Heat mounted a comeback to force extra time.

In a low scoring extra time, the hosts outscored the Heat 4-2 in the added five minutes.

Celtics point guard Rajon Rondo, who had 15 points and 15 assists, is unrepentant after commenting at half time the Heat kept crying to the referees.

Rondo says he doesn't take back what he said, because it's true.

With the series level at 2-all, game five in in Miami on Wednesday.