Ryan Garcia’s shadow boxing skills appear not to have gone down well with his trainer, Derrick James. Garcia is preparing to face Devin Haney on April 20 in the biggest fight of his career.

will take on “The Punching Preacher,” Derrick Osaze (13-2, 3 KOs), in a middleweight main event at the Indigo at The O2, Greenwich. The entire card will be promoted by Matchroom Boxing and be ...