The defence in the murder trial of Oscar Pistorius has been postponed because of the illness of one of the assessors assisting thejudge.
The athlete himself had been expected to take the stand.
The trial, in the South African city of Pretoria, has already heard 15 days of prosecution-led testimony.
Mr Pistorius denies deliberately shooting his girlfriend, Reeva Steenkamp, in February 2013, saying he mistook her for an intruder.
Prosecutors allege that he killed her after an argument.
The BBC's Karen Allen in Pretoria says that although Mr Pistorius is not legally obliged to testify he is the only witness to the alleged murder.
Note: The case as been shifted till April 7