In a media conference yesterday, Tuilaepa said the New Zealand Samoan fighter was clearly unfit is his loss to Dillian Whyte in London at the weekend.
"At least three times he had the chance to put his opponent down but he was not fit," he said.
Tuilaepa said he spoke with him after the unification bout loss to Anthony Joshua in April.
"I told him your trainer has reached the end of his knowledge and know how in boxing, he needs to go," said Tuilaepa.
