The Celtics led the New York Knicks by as much as 20 points in the third quarter, but the Knicks then began a furious comeback and won the game in overtime. After Boston took that 20-point lead, the Knicks outscored them 56-33 to end up tying the game and force overtime.

Before the Celtics dropped Game 1 of their second-round playoff series with the Knicks, before they even got to overtime Monday night, they made history. Related Articles Callahan: Celtics’ collapse in Game 1 was self-inflicted Celtics blow 20-point lead,

The Boston Celtics suffered a significant Game 1 loss to the New York Knicks in the Eastern Conference Semifinals. This loss was especially devastating considering that the Celtics made history by taking 60 three-point attempts,