Oscar Pistorius' track career has been put on hold indefinitely after his agent cancelled all future races.
Peet Van Zyl said that Pistorius needed to concentrate on defending himself against allegations that he murdered his model girlfriend on Valentine's morning.
Reeva Steenkamp died from gunshot wounds inside Pistorius' home early on Thursday. He was arrested and charged with her murder hours later. A spokesman said that he denies the allegations.
Reports in South Africa say that a bloodied cricket bat was found at the home of the Olympic star shortly after his girlfriend, Reeva Steenkamp, was found dead.
Pistorius will appear in a Pretoria court on Tuesday morning, where his lawyers are expected to apply for bail.