It was the Yankees’ nightmare.

The tying and go-ahead runners were on base Saturday night and Rafael Devers came striding to the plate at Yankee Stadium for the Red Sox.

Wandy Peralta had just walked consecutive hitters with two outs, setting up the unwanted situation.

But, though Peralta had momentarily lost the strike zone, the Yankees had the right man on the mound.

“Wandy’s been so tough,” manager Aaron Boone said. “Wandy’s obviously one of our dudes back there we lean on in every big situation.”

Peralta held onto the lead by getting the dangerous Devers, who had two homers already in the series, on a weak ground ball to second base to end the top half of the seventh inning.

The Yankees went on to knock off the Red Sox, 3-1.

“Especially against left-handers, he’s been so good, and that’s obviously as good as a lefty gets there,” Boone said of Peralta, who has given up just one hit all year to a left-handed hitter in 34 at-bats. “That in a lot of ways was the game right there, delivering there, getting the weak contact.”

It was a difficult inning for Peralta.

After he retired the first two Red Sox with ease, Masataka Yoshida worked out a walk after forcing Peralta to throw 14 pitches by fouling off eight pitches with two strikes.

Peralta then lost Justin Turner, bringing up the lefty Devers, who had hit his 15th homer of the season, and 21st of his career against the Yankees, in his previous at-bat.

At that point, Peralta received a visit from bullpen coach Mike Harkey, who was filling in for pitching coach Matt Blake, who had a death in the family.

With Tommy Kahnle warming up, it was going to be Peralta’s last batter either way, but Boone was unfazed though the southpaw had thrown a season-high 29 pitches.

“Thing about Wandy is he never gives in and he’s fearless, trusts himself to continue to make [his] pitch,” Boone said. “He got Devers there and he executed.”