Struggling former world number one Marat Safin has temporarily split from his coach Peter Lundgren.
Safin has been suffering a desperately frustrating time recently
The Russian, who won the Australian Open in 2005 under Lundgren, has slipped to 74 in the world because of injuries and poor form.
"We have taken a break and we'll see what happens," said Lundgren, formerly coach to Roger Federer.
"Hopefully we'll be back in the autumn with Marat in better shape. I believe we'll start it off together then."
Safin has lost in the first round of the last two Masters Series events in Toronto and Cincinnati and looks well short of the form that won him the Australian Open and the 2000 US Open.
"Marat is not quite himself any more, he doesn't really know where he stands," said Lundgren.
"He told me: 'Peter, I have nothing against you but I have to go on my own for a while,' and I understand him perfectly."