Swimmer Mitch Larkin has split with his long-time coach Michael Bohl in a bid to find motivation for the 2020 Olympics.
The world champion backstroker, who won a silver and bronze medal at the Rio Olympics last month, will trial other coaches and training programs after spending the past seven years with Bohl.
"In order to keep motivation at its highest along with excitement within the training environment, I've decided to look at what other programs along with other coaches can offer over the next Olympic cycle," Larkin said in a statement on Thursday.
The 23-year-old said it was the toughest decision of his life to leave Bohl's program at the St Peters Western club in Brisbane.
"Michael has done everything for me in my career and I would not be where I am today or achieved what I have achieved without him," he said.
"To leave such a great environment with so many amazing athletes has been tough, and also knowing my family has had such a strong bond with the club, - my father is the president -that has not been easy,.
"I am very excited to begin a new stage of my swimming career, however I want to take the time over the next few months to trial programs and find the best fit."
Bohl said he understood the reasoning of Larkin, who won 200m backstroke silver and 4x100m medley relay bronze at the Rio Games.
"Mitch had been contemplating his swimming for the next four years towards Tokyo (2020 Olympics) and felt he needed to change programs in order to keep stimulated," Bohl said in a statement.