Ronnie Davies is planning to lift the lid on life with the Eubanks in a book.
Davies has trained both father and son over the last 30 years and is currently in the gym with Jr as he prepares to challenge George Groves for his WBA super-middleweight championship at a sold-out Manchester Arena on Saturday, February 17.
The fight will be screened live on ITV Box Office and the winner will meet either Callum Smith or Juergen Braehmer in the final of the World Boxing Super Series.