I watched the Celtics blow a 3-1 lead to a 7-seed with Jayson Tatum ruled out of Game 7, and my first thought wasn’t anger. It was dread. Because while Boston was falling apart, Jalen Brunson was busy becoming something that doesn’t come around often in New York — a guy who actually wins when the moment gets impossibly big.
The Knicks erased a 22-point fourth-quarte...