On Monday night, the Celtics gave up a 20-point second-half lead in an eventual 108-105 loss to the New York Knicks.

It's not easy beating green, as the New York Knicks were far too willing to prove throughout last regular season. They pulled it off, however, when it mattered

The Knicks came from 20 points down to force overtime and beat the Celtics, who had a terrible night from 3-point land, in Game 1 of their series.