Bowyer’s action came after contact on the cool-down lap sent Bowyer’s car into the wall.
Both drivers were called to the NASCAR hauler after the race.
Asked what was the deal with Bowyer, Newman said: “You ask him.”
Newman later told Fox Sports 1: “(Bowyer) chopped me on the front straightaway earlier in the race. “Then after the race, I just tapped him in the back, let him know I didn’t appreciate the way he raced me. Then he body-slammed me, then I hit him back on the back straightaway and he cut across my nose in Turn 3. It doesn’t take much of a man try to fight someone with a helmet on. I think he should be embarrassed by himself.”
Bowyer told Fox Sports 1: “It was a damn sure surprise fight. “I don’t know what his beef was. I thought he was a lap down. Our day was over, we lost track position there, got sideways and crossed up and basically just biding time there, seeing if something is going to happen there at the end. … I thought he was a lap down.
“I checked up and he run into my left rear and that’s the last I saw of him. Then after the race, he comes and runs into my back and turns me all around. I pull up next to him and he dumps me in four. Where I come from, you get poked in the nose for that. That’s what he got.”
Bowyer finished 12th. Newman placed 13th.
Scott Miller, NASCAR senior vice president of competition, met with both drivers after the race.
“Obviously they had a little difference of opinion out there on the race track and they had a little difference of opinion here in the trailer but we think we understand what happened out there. We think they’re in a pretty good place We’re going to keep an eye on it. We think we’re in a good place with them. We’ll have to certainly monitor that next week and moving forward with those two.
“If there starts to be any shenanigans, we will intervene.”
Asked if there will be any penalties, Miller said: “I don’t think so, no.”