CJ McCollum scored 32 points to lead the Atlanta Hawks (47-37 straight up, 45-39 against the spread) back from a 12-point fourth-quarter deficit to beat the New York Knicks 107-106 in Game 2 as six-point road underdogs. Quin Snyder’s club hooked up money-line supporters with a +200 payout.

“It’s a long game,” McCollum told reporters. “You’ve got to play to zero.”

The 34-year-old McCollum gave Atlanta its first lead of the series, 101-100, when he took Jalen Brunson off the dribble for a driving layup over Karl-Anthony Towns with 2:09 left.

With Atlanta clinging to a 105-103 lead, Jalen Brunson got the ball with 18 seconds remaining well beyond the 3-point line and penetrated to his left, only to get stripped by Nickeil Alexander-Walker with 14 ticks left. Alexander-Walker pushed the ball the other way and dished to Jalen Johnson, who dunked for a four-point lead with 10.2 seconds left.

After Brunson drained a 3-ball with 7.1 seconds remaining to cut the deficit to one, Josh Hart fouled McCollum with 5.6 ticks left. McCollum, a career 79.6 percent free-throw shooter who had drilled his first five free throws of the game, missed both free throws to open the door for the Knicks.

However, Mikal Bridges missed a potential game-winning jumper at the other end, allowing the Hawks to pull even at 1-1 in this best-of-seven series.

McCollum had six assists, three rebounds, two steals and one blocked shot, hitting 12-of-22 field-goal attempts. In 35 minutes off the bench, Jonathan Kuminga, another shrewd trade deadline acquisition like McCollum, had 19 points, four boards, two steals, one assist and one blocked shot. The former Golden State Warrior made 7-of-12 FGAs.

Johnson produced 17 points, eight rebounds, three assists and one steal despite dealing with suffocating defense from Hart. Onyeka Okongwu finished with 15 points and eight rebounds on 6-of-9 makes from the field.

In the losing effort, Brunson had 29 points and seven assists, hitting 10-of-26 FGAs and coughing up three turnovers. Towns tallied 18 points, eight boards, two assists and a pair of blocked shots. Hart was fantastic with 15 points, 13 rebounds and six assists compared to only one turnover.

Mitchell Robinson contributed 13 points, seven rebounds, one steal and one blocked shot in 18 minutes of playing time. He made all six of his FGAs.

“This is a game we should have won,” Hart said. “In the playoffs you can’t give away games.”

Since the 1954-55 campaign, the Knicks had compiled a 40-1 record in their 41 previous postseason games in which they had a 12-point lead in the fourth quarter. The only other defeat? To the Pacers when Reggie Miller scored 25 points in the final stanza of Game 5 of the 1994 Eastern Conference finals.

As of early Tuesday morning, BetMGM and DraftKings had New York (54-30 SU, 43-40-1 ATS) listed as a 1.5-point road favorite (at +100 and -102 prices, respectively) for Thursday’s Game 3 at Atlanta. Circa and the Westgate SuperBook had the game as a pick ’em, while most spots had the total at 216 or 216.5 points.

FanDuel’s updated series price has the Knicks as -194 favorites, leaving the Hawks as +162 underdogs. The book has New York with 25/1 odds to win the NBA Finals, while Atlanta is a 150/1 longshot.