Yankee finally had enough of Phillies fans’ air horns, drum line

It should be no surprise that fans in the city that once booed Santa Claus would be able to give the Phillies a home-field advantage — even when they’re not allowed in the ballpark.

For a second straight day with the Yankees in town, a group of fans gathered outside the center-field gates at Citizens Bank Park and made noise.

On Wednesday, it included a drum line and a chant to sign catcher J.T. Realmuto to an extension.

And in the Yankees’ 5-4 loss to the Phillies on Thursday, there was a cowbell, as well as an air horn, which seemingly blared as Yankee hitters were trying to hit.

The most glaring example came in the top of the third, when Gleyber Torres flied to right to end the inning.

Following the out, Aaron Boone came out of the dugout to talk to the umpires to see if there was anything they could do, but even he knew he didn’t have much of a shot at getting it resolved.

“It sounded like a horn was going off as the pitch [was thrown],’’ Boone said of the at-bat. “In the environment we’re in, it’s almost like a golf environment.”

He noted the “sudden” noise could be a distraction, especially if it came at the right moment.

“I thought there was a timing element to it, maybe,’’ Boone said. “Obviously, I didn’t think [the umpires] would be able to do anything about it. I didn’t necessarily know who or where it was coming from, but it was at least something I wanted to point out.”

Boone was told that unless it was coming from inside the ballpark, he was right: There wasn’t much the umps could do.

Jordan Montgomery said he heard the racket “but it’s no different than fans in the stands. It’s kind of messed up that they’re out there, but it is what it is.”

Mike Tauchman said he wasn’t surprised they went to such lengths to make an impact, as the group grew from approximately 10 to about double that on Thursday night.

“You could hear it,’’ Tauchman said of the noisemakers. “It was pretty loud. Philadelphia is known for having a pretty passionate fan base. Those guys want to find a way to support their team even though they can’t get in the stadium. And that’s how they chose to show their fandom tonight.”

— Additional reporting by Ken Davidoff in Philadelphia