( dpa )- David Nalbandian's Australian Open preparation is in tatters after the Argentine hurt his back on Wednesday during training with Marat Safin for this week's AAMI Classic.
The Argentine said that doctors have told him he needs to rest a back spasm for up to four days, a tight timetable as the Australian Open starts on Monday.
Nalbandian , who beat both Roger Federer and Rafael Nadal once per event on the way to Masters Series titles in Madrid and Paris, said he hopes to be able to test his back at the weekend.
His place in the draw at the Kooyong club special event was taken by Australian Open junior champion Brydan Klein.
"I need to rest, take treatment and we'll see how it goes," said Nalbandian , "It occurred after 30 minutes on court.
" Marat and I were playing points. But I had to stop. For sure I can't play, I can't even hit slowly.
"It's better to rest and recover the muscle. We have to wait and see."