icon Updated at 02:52 PM EDT, Tue Jul 17, 2018

Anthony Joshua, Jarrell Miller Erupt in Heated Confrontation

The firework erupted when Anthony Joshua hit New York City to officially announce his heavyweight title defense against Alexander Povetkin, which will be aired on the streaming platform DAZN on Sept. 22 as part of the U.S. debut of the service.

But the fireworks were not between Joshua and Povetkin.

Joshua was confronted by heavyweight contender Jarrell Miller - and the two big fighters had to be separated after a very heated exchange of words.

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Povetkin simply stood back and watched, as the drama unfolded.

Miller was verbally attacking Joshua, until the WBA, IBF, IBO, WBO world champion erupted.

“Who you f****** talking to, shut the f*** up and get off the stage, you little b*tch. I'll slap you. Have some respect," Joshua said.

They were quickly separated before the situation could escalate any further.

Joshua and Povetkin joined the executives of the streaming company and promoter Eddie Hearn, who is the managing director of Matchroom Sport, to announce the debut telecast.

"Everything we do is new and great, so it was only right we'd be part of this," Joshua said.

In recent years most big boxing matches have been televised in the U.S. either by the premium cable networks Showtime and HBO or sold on pay-per-view through one of the two networks. ESPN signed a long term agreement with promoter Top Rank last year to provide exclusive content, and has launched a streaming service of its own, ESPN+, to show fights and other events at $4.99 a month.

Hearn said the fight card between Joshua and Povetkin at Wembley Stadium in London will be followed by an Oct. 6 card from Chicago featuring Jesse Vargas and women's fighter Katie Taylor, and an Oct. 20 card in Los Angeles headlined by super bantamweight champion Daniel Roman.