Amir Khan will in "due course" announce the name of the trainer he hopes is going to mastermind his route back to the top of boxing.
The 25-year-old has parted company with Freddie Roach, regarded by many as the best trainer in the business, in the wake of damaging defeats by Lamont Petersen and Danny Garcia.
The Bolton boxer confirmed on Saturday what most had expected to happen since his 14 July defeat to Garcia which saw him lose his WBA and WBC light-welterweight titles.
"Officially I've left Freddie Roach. Just spoke to him and had a good professional chat and maybe in the future we work together," Khan wrote on Twitter.
In a more considered statement, the former Olympic gold medallist thanked Roach. "After nearly four years together, in which we enjoyed some great success, I part ways with my trainer Freddie Roach," he wrote.
"I would like to thank him for all his hard work and help during this period and express my gratitude to him for the progress he helped bring about whilst I was under him.
"I would also like to thank his team. I loved every minute training in LA at the Wildcard Gym, learning and sparring alongside some truly great fighters and meeting some fantastic people.
"I feel now, however, is the right time in my career to make a fresh change and bring in a new trainer. I'm looking forward, and am excited, about the prospect of working alongside someone new. I will make an announcement in due course of who this will be.
"There are some specific aspects of my game I'm looking to work on and hopefully improve. My next training camp begins in early October and I will have everything in place by then."
Khan may well choose to be trained in England, meaning he will no longer have to make regular trips to Los Angeles or to the Philippines, where Roach trains Manny Pacquiao, the world's best pound-for-found fighter.