Tensions were already on a razor’s edge in Saturday afternoon’s Ryder Cup four-ball matches between the U.S. and Europe.

The Americans were eager to avoid the humiliation of being outplayed on home soil at Bethpage Black by the Europeans, who collectively were delivering exceptional performances to secure a remarkable 11 ½ to 4 ½ lead.

Rory McIlroy, a standout player for Europe and one of golf’s most controversial figures, faced intense heckling from New York fans. The situation escalated to the point where it seemed that a significant portion of the New York State Police was trailing his group for the remainder of the final nine holes.

The tension continued with the match between Justin Rose and Tommy Fleetwood taking on Scottie Scheffler and Bryson DeChambeau, as they reached the 16th green with the Europeans holding a 3-up advantage.

Rose was about to line up his putt when DeChambeau’s caddie, Greg Bodine, walked in front of him, causing Rose to angrily wave him out of the way.

 Rose, of course, made the birdie putt, which was matched by DeChambeau to halve the hole.

There was then some chatter between Rose, DeChambeau and Bodine as they walked off the 15th green when Fleetwood got into DeChambeau’s ear.

European vice captain Francesco Molinari then got into it with Scheffler’s caddie, Ted Scott, after he put his hand on Scott’s shoulder and shouted at him in Italian, as they walked up the hill to the 16th green.

Fleetwood’s caddie Ian Finnis then tried to play peacemaker, telling everyone to “chill out.’’

From there, they played the 16th hole, which Rose won with a winning putt to close out the match for the Europeans.

After the match, the players and caddies spoke to each other in a much calmer fashion with no further exchanges.

 Rose and Fleetwood spoke to the Golf Channel, as is custom after players win a match. 

However, when DeChambeau was asked politely if he would speak, he declined, and then turned around and told the Golf Channel and The Post to “get the f–k away’’ from the U.S. team.

 Scheffler then calmly intervened and said, “No one from our team is doing any interviews.’’

 Rose explained the incident afterward.

“I was ready to hit my putt (and) I didn’t feel like that space was being honored,’’ Rose said. “I was waiting to putt. The boys were obviously working on their read, obviously going through a lot of their sort of whatever, calculations and bits and pieces, so I sort of waited a few seconds and then I felt like they came up again and I was like, ‘It’s my putt, right?’ Or however I said it. I maybe made my feelings known [and] asked him to move. 

“Maybe I didn’t say it as politely as I could have said it in the moment, but by no means was there any disrespect or anything like that. Obviously, it was taken the wrong way. I said to the boys, ‘If you want me to say, excuse me, please, then yeah, my bad.’

 “It’s a shame that the match got to that point, because it was actually a really great match.’’

Rose said he “spoke to the boys’’ after the match, adding, “It should be [over] in my opinion. There was no intent behind it whatsoever, especially [toward] Scottie. I admire him more than anybody else out on Tour the way he goes about his business, the way he goes about his life, and obviously just huge respect all around.

“But from my point of view, it was something that was sort of taken in a way that wasn’t intended in a way, but obviously it was a big putt, big moment. I’m trying to control my environment as well in that scenario. We’re all competitors, right, so I think that’s all within the framework of what we’ve got to do out here.’’