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.

With three seconds left in overtime and the Knicks up 108-105, Karl-Anthony Towns fouled Jaylen Brown (just) before Brown could get up a 3-point shot. Boston called timeout, and it has a chance to tie the game. This has been a crazy game, and we're about to find out if there will be a second overtime.

The regular-season rivalry wasn't very much of a rivalry, as the Celtics won all four matchups. Boston won the first three games by 23, 27 and 13 points, respectively, before taking the final showdown, 119-117, in overtime back on April 8 in New York.