The Indianapolis Colts did not sleep on the Vikings’ bigplay offense Saturday, coach Jeff Saturday said after his team blew a 33-0 lead before losing 39-36 in overtime at U.S. Bank Stadium.

The Vikings didn’t score until K.J. Osborn caught a four-yard pass from Kirk Cousins with 8 minutes, 22 seconds left in the third quarter and wound up outscoring the Colts 39-3 in the second half to improve to 11-3 and clinch the NFC North division title.

“When we walked out at halftime, I told them, ‘This team … nine of their 10 games were one-score games,’ ” Saturday said. “We didn’t overlook them.”

Yet as they’ve done seven times this season, the Vikings rallied to win, this time setting the NFL record for a comeback. The 33-deficit they erased was bigger than 28-point regular-season deficits erased by San Francisco in a Week 14, 38-35 victory over New Orleans, and bigger than the 32-point postseason deficit erased by Buffalo in a 41-38 overtime victory over the Houston Oilers in 1992.

The trick, Vikings coach Kevin O’Connell said, was retooling, on the fly, an offense that didn’t fire a shot in the first half.

“When you’re trying to do something like that, really offensively, in a lot of cases we’re just trying to create things,” O’Connell said. “In a lot of cases, getting players, seeing what kind of looks we can attack to generate maybe some of the things we didn’t talk about in practice.”

Whatever adjustments the Vikings made, they worked. Minnesota won on the strength of several big plays that erased a 33-0 deficit in just over 23 minutes.

Before being hired in February, O’Connell helped lead the Los Angeles Rams to a Super Bowl win as the team’s offensive coordinator.

After passing for 43 yards with a pick-six in the first half, Kirk Cousins finished with 460 yards and four touchdowns.

K.J. Osborn caught a four-yard touchdown pass to start the scoring, after he caught a 63-pass from Cousins three players earlier. Dalvin Cook caught a 64-yard screen pass that tied the score 36-36 with 2:15 remaining after a two-point conversion to tight end T.J. Hockenson.

“That screen,” O’Connell said, “was a season-defining kind of play in that moment where you have to have it.”

When all was said and done, Cook had 190 yards of total offense, Osborn had 10 catches for a career-high 157 yards and a score, and Justin Jefferson had a team-high 12 catches for 120 yards and a touchdown. Adam Thielan also caught a touchdown pass.

“You cannot win the football game the way we had to go win it without your quarterback playing at an incredibly high level,” O’Connell said.

Minnesota got help from a crowd of 66,801 that mostly stuck around after the Vikings fell behind 33-0 — and was rewarded with a piece of history.

“I know from experience, being in this stadium, this crowd’s loud,” said Hockenson, traded to Minnesota from Detroit on Nov. 1. “I’m happy to be on this side of it.”

The Colts offense struggled in the second half, managing only three points and five first downs after producing 33 and 12, respectively, in the first. The defense also forced an Indianapolis fumble late in the fourth quarter.

Hockenson’s two-point conversion catch was among the biggest plays of the game and, after playing for losing teams in Detroit, his career.

“That’s going to go down as one of the most special ones to keep,” he said. “Just to be here with this team, I mean, you don’t come back from 33 points without it being a team effort. All these guys in this locker room deserve credit.”

It was a bitter pill to swallow for the Colts, who came into the game 3-1-1 in their previous five games with a victory over Kansas City but are now on the wrong side of history.

“It’s on the football team,”

Saturday said. “Everybody in that room knows it’s on everybody.

We don’t point fingers, we don’t place blame.

You’re up big in the first half; you have opportunities to go out and close the game, on both sides of the ball. We didn’t make plays.”