Swimming Australia has expressed its disappointment in James Magnussen's decision to work with untested young coaches Mitch and Lach Falvey.
The 23-year-old, who is the current 100m freestyle world champion, teamed up with the duo after parting company with Brant Best following a four-year spell back in September.
SA performance director Michael Scott said in a statement: "We do not support the training environment James has chosen going forward and there are a range of factors that have led us to that decision and we are not about to go into them.
"In saying that, we have nothing against the young coaches Mitch and Lach Falvey."
Magnussen has embarked on a new training programme at Ravenswood swimming club in Sydney.
