Copeland scored all his points in the second half and played 19 minutes. He hit two free throws with 11 seconds left to give the Knicks a three-point lead. The Celtics didn't get a shot off before time expired.
Anthony scored all his points in the third quarter and sat the remainder of the game. He picked up a technical foul in the third quarter as the Celtics built a 61-49 lead.
Midway through the fourth quarter, the Knicks went on a 12-0 run to take an 84-78 lead with 3:30 left. Trailing 86-85, the Celtics tied it on Sullinger's free throw with 16.6 seconds left.
The Knicks took a 20-second timeout with 5.2 seconds left, but Copeland missed an off-balanced shot from the perimeter as time expired.
Knicks forward Amare Stoudemire missed the games because of a bruised left knee.