ANTHONY JOSHUA appointed Derrick James earlier this year and the pair have already been together for one fight.
Joshua beat Jermaine Franklin earlier this year with James in his corner, and their run is set to continue this weekend.
Joshua takes on Robert Helenius this weekend in a late replacement fight at the O2 Arena after Dillian Whyte failed a drugs test.
AJ was formally trained by ex-professional boxer Robert Garcia, but that partnership only lasted for the second Usyk fight.
Joshua also parted ways with long-term trainer Rob McCracken after his first defeat to Usyk.