Heavyweight contender Jarrell Miller declared "it's about time I knocked out a Brit" after maintaining his unbeaten record with a demolition of Bogdan Dinu.

Miller brutally stopped Romanian Dinu - who had won all 18 of his previous fights - in the fourth round of their heavyweight meeting at the Kansas Star Arena on Saturday.

"We're just trying to work out what to do next," the 30-year-old, nicknamed 'Big Baby', stated in the aftermath of his win.

"We want AJ [Anthony Joshua] but he's a little busy, if Dillian Whyte gets past Derek Chisora, I want one of them.

"But I heard about Trevor Bryan, another unbeaten fighter, so I can knockout unbeaten fighters. Let's see if Trevor Bryan picks up his phone, I will kick his behind out as well.

"It's about time I knocked out a Brit. The Brits, right now, are top of the list and there's just me and Deontay [Wilder] as the two undefeated American guys and Deontay's fighting a Brit.

"He's called out AJ but Tyson Fury's stepped up, so if I can't get AJ, I'd like to take Dillian Whyte, Dereck Chisora, even a David Allen or David Price.

"If Eddie Hearn wants it and he comes up with a game plan that I like, let's make it happen."

Miller (23-0-1, 20 KOs) had some trouble in the early going of the fight, as Dinu was moving and countering.

But by the fourth round, Miller had cut the distance - dropping Dinu twice for the knockout win.

“My jab was better than his, but I couldn’t get off my front foot. I’ve been battling a cold since I got to Wichita I knew I was going to get him. That’s boxing, I just needed to adjust. He was getting winded once I started throwing body shots. I had to get my footing down, I knew I would get him," Miller said.

“I come to fight, and nothing was given to me. Putting all the BS aside, I’ve been on my own since I was 17. I’m a fighter and people think I’m 315 pounds and talk smack. I’m a lovable guy and eat cheeseburgers.”