WBC Super Welterweight Champion Tony "Superbad'' Harrison and former world champion Jermell Charlo exchanged words at a heated Los Angeles press conference Wednesday ahead of their world championship rematch that headlines Premier Boxing Champions on FOX and FOX Deportes Sunday, June 23 from Mandalay Bay Events Center in Las Vegas (8 p.m. ET/5 p.m. PT). (photos by Sean Ham, Chris Farina).

Tickets for the event, which is promoted by Lions Only Promotions, TGB Promotions and Mayweather Promotions, are on sale now and can be purchased at AXS.com.

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Harrison and Charlo's first encounter took place live on FOX in December as Harrison earned the decision and upset Charlo to earn the title. The close nature of the bout helped warrant an immediate rematch that promises to be just as highly charged and dramatic as before.

The drama from their first bout poured over into Wednesday's press conference, as the fighters went forehead to forehead while facing off for media, neither looking to cede any ground in the build up to their rematch.

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