A Bills fan claimed Sunday that Dolphins safety Bobby McCain spit on him and threatened to spit on a nearby 13-year-old boy who was heckling the player from the stands in Buffalo.

The alleged incident — reminiscent of a famous “Seinfeld” episode in which Mets legend Keith Hernandez is fictitiously accused of spitting on Kramer and Newman — led to Dolphins head coach Brian Flores announcing Monday the team will discipline McCain “internally,” according to the Miami Herald.

“He and I have a pretty open dialogue,” Flores told reporters. “I heard his side of the story and it’s unfortunate. I feel like he needed to handle that situation better. We’re going to discipline Bobby for that.”

Bills fan Dylan Wentland said he heard the teenage boy before the game shout, “You’re irrelevant,” as the 0-6 Dolphins came onto the field before the game.

That reportedly prompted the 26-year-old McCain to threaten to spit in the boy’s face.

“McCain walked over and, like, faked spitting on him five or six times,” said the boy’s father, Scott Hammond. “He made the noise but nothing came out.”

McCain didn’t interact with the fans during the game, Wentland said.

“I haven’t even said a word to him,” Wentland said. “He runs right up to me [after the game] and spits in my face and then runs down the tunnel. I mean literally wound up, hocked and just spit right in my face while I’m standing there.”

Local Buffalo police plans to follow up with the NFL and investigate the matter, according to the Buffalo News, which first reported the incident.

“It’s a serious allegation,” said Erie County Undersheriff Mark Wipperman, “It’s gross.”