KNIGHT OUT

Mets suspend Harvey

The Mets suspended former ace Matt Harvey yesterday for failing to show up at Citi Field Saturday, and the “Dark Knight” doesn’t exactly have the support of all his teammates. “As a grown man, you’ve got a job to do,” said Jose Reyes.

They call Matt Harvey the “Dark Knight,” but the Mets pitcher is looking a lot more like the Joker.

The Mets on Sunday suspended their struggling former ace after he failed to show up at Citi Field for Saturday’s game — reportedly because he had a headache.

The team was so intent on punishing Harvey (right) that they sent him home when he showed up for his scheduled start Sunday against their division rival, the Miami Marlins.

The decision to bench the AllStar hurler left the Amazin’s with no choice but to start little-known Adam Wilk, who gave up five earned runs en route to a 7-0 loss.

Fans were left scratching their heads over what prompted Harvey to go AWOL from his team, while his teammates stewed over his behavior.

“You’re an employee. You have to understand you need to show up for your work,” groused Mets infielder Jose Reyes.

“As a grown man, you’ve got a job to do. You have to understand: If you don’t show up, you’re going to pay the consequence,” Reyes said.

The three days of unpaid suspension will cost Harvey about $82,000 of his $5.125 million salary, an insider estimated.

Harvey may file a grievance over his suspension, sources told the FanRag sports-news Web site — which reported that Harvey played golf before Saturday’s night game against the Marlins.

After his round on the links, he claimed he suffered a migraine and decided to stay home, according to FanRag. He then showed up at Citi Field on Sunday thinking he was going to start but was told to go right back home.

The Mets declined to talk about what happened between them and Harvey, who has been a disappointing 2-2 this season with a hefty 5.14 earned-run average.

“We’re gonna keep it in-house, the way it’s supposed to be,” Mets manager Terry Collins said before Sunday’s game. “There’s things with this job the public can’t see and how hard it is, and this one’s a tough one. So we hope to put it behind us and move forward.”

Later, after Sunday’s 7-0 loss, in which the team managed just one hit, Collins admitted Harvey’s absence was probably a distraction.

“I don’t think there’s any doubt that all of a sudden guys lost that focus a little bit,” he said. “That certainly didn’t help us. We’ve got to move forward, and we’ve got to move forward fast.”

Harvey, 28, began his career in Flushing as an instant sensation during great seasons in 2013 and 2015. He posted win-loss records of 9-5 and 13-8 in those campaigns, respectively, and started the 2013 All-Star Game at Citi Field.

Harvey earned the nickname the Dark Knight, and Mets fans can often be seen donning Batman gear when he pitches. But there have been bumps along the way, even during his heyday.

Mets fans will always remember Game 5 of the 2015 World Series, when Harvey talked Collins out of removing him in the ninth inning and he coughed up the lead.

Harvey also missed a mandatory workout in 2015, saying he got caught in traffic. He was not suspended for that.

Second baseman Neil Walker said Sunday that he understands the suspension but will embrace Harvey upon his return.

“Things happen. It’s a long sea- son,” Walker said. “We’ve all been a part of when a guy breaks team rules and they serve the consequences.”

Collins said he and team brass hadn’t decided when Harvey would be inserted back into the rotation — which could come as early as Tuesday night against the San Francisco Giants.

While Harvey’s work on the mound has been a roller coaster, his off-the-field exploits have remained top notch. He’s a regular at New York Rangers hockey games — often with a beautiful model on his arm.

Harvey raised eyebrows this past March when he was spotted at a Florida hot spot with supermodel Adriana Lima. Video footage showed Harvey enjoying a post-dinner smoke. Lima then appeared to fiddle with an unseen object or substance on the table that Harvey examined at close range.