Anthony Joshua opens up on rumours of replacing Rob McCracken
Joshua will return to the ring against Usyk next year bidding to become a three-time heavyweight world champion.
Joshua slumped to a unanimous decision defeat to Oleksandr Usyk in September, surrendering the WBA, IBF and WBO heavyweight titles.
Despite needing a chance to avenge the second defeat of his career, AJ revealed he has not split from McCracken - the same coach who guided him to Olympic and world glory in the amateurs and professional ranks - but is open to expanding his team.
Asked if McCracken could remain his trainer, Joshua told IFLTV: "Yeah, and he has to speak to the people I may want to work with and see if he can work with them.
Hunter currently trains Joshua Buatsi, who is signed to Joshua's 258 Management company and has previously worked with Amir Khan and two-division king Andre Ward.
Reynoso, alongside Roberto Garcia, work with Saul 'Canelo' Alvarez, Ryan Garcia, Oscar Valdez and Andy Ruiz Jr.
Shields meanwhile is known for being in the corner of Mike Tyson, Evander Holyfield and more recently Jermell and Jermall Charlo.