Caroline Dubois calls Alycia Baumgardner a coward and challenges American to make biggest fight in women's boxing

Caroline Dubois labelled Alycia Baumgardner a coward after the pair were involved in a heated confrontation at ringside on Saturday night.

The transatlantic rivals have been heavily-linked to a potential super-fight as Baumgardner prepares to step into the same division as Dubois when she challenges Elif Nur Turhan for the IBF lightweight world title on November 8.