The Celtics are among the most storied franchises in NBA history and have had some of the game’s best coaches on their bench.

BOSTON — The Celtics made playoff history in Game 1 on Monday night while blowing a 20-point third quarter lead to the underdog Knicks. The hosts shot just 25 percent from the field from 3-point range in the 108-105 overtime defeat, going just 15-of-60 from beyond the arc.

Kendrick Perkins, a former NBA champion and Boston player himself, spoke out on "First Take" with a stern warning to the Celtics before Game 2. "If [the Celtics] go down 0-2, this series is over with," he said boldly.