All that griping about the grass at Yankee Stadium? Much ado about less than nothing.

Despite the brutal winter and presence of New York City FC — who already have played twice at the Stadium — the field was a bright spot during Monday’s 6-1, Opening Day loss to Toronto. It held up just fine, to the point the Bombers didn’t notice any problems at all.

“It was good,’’ said shortstop Didi Gregorius, with catcher Brian McCann echoing that sentiment. “It was OK.’’

Several Yankees had groused about the presence of NYCFC during spring training, notably first baseman Mark Teixeira and outfielder Jacoby Ellsbury, with the outfielder saying: “I’m sure it’s not going to help anything, but there’s nothing we can do about it. … Ideally, nothing would be there. But if they make it look like nothing happened, I guess it could be a win for everybody and Yankee Stadium can get more events.”

But on Monday, Teixeira rebuffed two questions on the topic of the field, saying, “I’m not going to talk about that.’’

The field had been in horrid condition as recently as March 12, with the Yankee Stadium crew still feverishly re-sodding it. But the crew got it into playing shape for NYCFC’s home debut that weekend, and had it immaculate by Monday.

“I didn’t notice anything,’’ third baseman Chase Headley said. “I wasn’t too worried about it. I don’t think third base is even on the field. Seemed like the grass was a little bit longer last year, but that was it.’’

Second baseman Stephen Drew agreed the grass was a bit different from last season, but not inferior or in any way problematic.

“Looking at it, it’s a little different. The grass wasn’t quite the same,” Drew said. “I don’t know how much of that is because of soccer and how much is just we just started playing here. Overall, though, it’s OK. I wonder how it’s going to play over time, with that grass just getting beat down with soccer. The dirt’s OK. There were some soft spots here and there.’’

Vice president of stadium operations Doug Behar didn’t reply to an email from The Post, but earlier had expressed confidence the grounds crew would get the field up to par even without hiring extra help, and did just that.

“Anything we do in Yankee Stadium, there’s going to be a certain amount of pressure behind it,” Behar said. “We’re a world-class facility; we’re the cathedral of baseball. So whether it’s a football game or a soccer friendly or the baseball games we play here, it’s always our desire to put in a world-class field.

“Everything we do, every event that’s here, we recognize there’s potential for some damage. But we plan for that. We have contingencies — we don’t just wait for it to happen and say, ‘Now what do we do?’ We obviously hope for the best, but are prepared for the worst.’’