The “Bagel Guy” may really get schmeared by this slugger!

Chris Morgan, whose meltdown at a Long Island bagel store went viral, is set to face off against former MLB All-Star Lenny Dykstra in a boxing ring.

The 56-year-old retired baseball player inked a deal with Celebrity Boxing promoter Damon Feldman for the showdown next month in Atlantic City, he confirmed Monday to The Post.

But the 5-foot-nothing bagel store customer who was pummeled to the ground in the infamous video said he’s not intimidated by Dykstra’s World Series rings.

“He’s one of the best in the world but he’s got 15 years over me,” Morgan, 45, told The Post. “No offense but I’m younger, I’m stronger, I’m faster.”

The 155-pound punching bag claims that he’s been underestimated since he went down swinging last month at a Bagel Boss in Bay Shore, where he lashed out over being repeatedly rejected by women.

“Let everyone have your opinions. Just wait for it because I have the confidence and I know what I’m capable of,” Morgan said. “He’s got the reach but I’ve got the stance. I’ve got the power. I don’t think you need to question it any further. ”

Morgan said he’s gearing up for the match with a high-protein diet that includes “a lot of eggs” — though not any recently on a bagel.

He’s also claims he’s been working out three to four times a week, including sessions at a Garden City martial arts gym.

“I’ve been walking, throwing fists, push-ups, some cardio,” Morgan said.

With his training underway, Morgan warned his competitor to start lifting before he jumps in the ring — where they’ll face off in three, one-and-half minute rounds.

“Be ready. Be in your best shape because I’m going to kick your ass. I’m coming for ya baby,” Morgan cautioned the former athlete.

It’s unclear whether Dykstra — who is 5-foot-9 and weighs in at 190 pounds — will go easy on the pint-sized bagel fan.

Dykstra took to Twitter to offer some advice to Morgan — who whined that women don’t want to date him because of his short stature.

“I actually feel bad about it. I want to help you,” Dykstra said in a July 10 video. “The anger and issues you have about being small, you need to understand I was the smallest guy in the league so I had to deal with the same kind of things.”

The boxing match is set to go down on Sept. 7 at The Showboat Hotel — but the pair will get a chance to size each other up first next Thursday for a weigh-in.