Dubois, 25, turned professional in October 2021 and signed to be trained and managed by east London-based McGuigan.

The pair have enjoyed a very fruitful relationship with Dubois (13-0-1, 5 KOs), who is The Ring’s No.10-rated pound-for-pound female fighter, emerging as one of the hottest properties in the sport.

She became world champion for the first time in December 2024 after being elevated from her position as interim beltholder when Katie Taylor vacated the WBC title.

McGuigan steered her to three successful championship defenses before a unification against WBO titleholder Terri Harper on April 5 in the biggest fight of her career to date.

The southpaw beat Harper via unanimous decision to claim the WBO and Ring titles at London’s Olympia.

She had spent some time training at Kay Koroma's Knuckleheads Boxing Gym in Las Vegas ahead of that fight while McGuigan stayed in London, which lead to rumors of a split.

However she completed her camp in London and McGuigan was in the corner for the fight. But now The Ring has learned that they have officially parted ways, although doing so on good terms.

There is no confirmation on her next move, although Dubois recently uploaded a picture to her Instagram which included Manny Robles.

She will next defend her unified titles against America's Amelia Moore (4-0, 1 KO) in the chief support preceding Mikaela Mayer-Chantelle Cameron at Birmingham's bp pulse LIVE Arena on August 29.