BEREA, Ohio — For Odell Beckham Jr., his first trip back to MetLife Stadium not wearing a Giants uniform represents “just another game,” he insisted.

But going up against a Gregg Williams defense means it will certainly not be.

Beckham unloaded Thursday on the new Jets defensive coordinator, whom he said coaches his players to make dirty hits, like the one he suffered in the 2017 preseason against the Browns as a member of the Giants. The star wide receiver leaped to catch a pass from Eli Manning and was undercut by defensive back Briean Boddy-Calhoun, who leveled his shoulder against Beckham’s left knee. Beckham’s head also hit the ground hard as a result of the hit, and while he came out of it with only a sprained left ankle, he believes it led to all of the leg injuries he has had since.

“I had players on this team telling me that’s what he was telling them to do: take me out of the game, and it’s preseason,” Beckham said. “So you just know who he is. That’s the man who’s calling the plays.

“I had people who were here when he was here telling [them], ‘If you get a chance, take a shot at him. If you can hurt him, I guarantee he’s going to leave the game hurt,’ and stuff like that.”

“It’s something that I’ll never forget. It’s something that changed my life forever.”

Beckham’s beef with Williams — who was suspended in 2012 for his role in “Bountygate,” in which Saints players were paid for injuring opponents — came out after a simple question about whether he expected man coverage. It was the only nudge he needed to get going.

“The only thing I’m buying is probably just gotta watch out for the cheap shots and the dirty hits and all the things he likes to teach,” Beckham said, as his watch saga quickly became old news. “If God wouldn’t have blessed me the way that I am, I probably would have blown my knee in that preseason game if I couldn’t have got my foot off the ground.”

Beckham came back from the ankle sprain “probably three weeks too early,” he said, and played four games before breaking that same ankle against the Chargers, which ended his season.

Then last year, he suffered a left quad injury in Week 12 when he got leg-whipped by an Eagles linebacker. He played through it the following game, but he revealed Thursday he tore his quad in a Week 14 practice, effectively ending his Giants career.

All of it, he believes, trace back to the dirty hit in Cleveland.

“My doctor told me that something like that was probably going to happen,” Beckham said, noting how he compensated from the original ankle injury. “I ended up catching a nasty hematoma last year. Banged up and I just tried to play through it. It was Thursday before the fourth-to-last game of the [year], I was running an out-and-up, I stepped on the up and my quad just tore.

“I wish I could have went out there and finished the season, but I couldn’t. I just did my best to be a team player, see if I could travel with the team, none of that was happening. So I just tried to be there for those guys however I could. That’s just the person I am.”

Beckham played 30 games at MetLife Stadium in five seasons as a Giant, recording 198 receptions for 2,900 yards and 23 touchdowns. He was expected to make even more memories there when he signed a five-year, $90 million contract last August, only to be traded to the Browns in March.

Added motivation aside, he could be in for another field day Monday night. The Browns are already looking for redemption after the offense sputtered in a Week 1 loss to the Titans. And given the Jets’ struggles at cornerback, Beckham has a chance to go off in his old home.

“Just another game. That’s really it,” he said. “‘Monday Night Football’ under the lights. Just trying to get wins.”