Oscar Pistorius has formally called off the races that were due in coming months in the face of charges of murdering his girlfriend on Valentine's Day, his manager said.

The Olympic and Paralympic athlete was charged on Friday with the premeditated murder of 29-year-old Reeva Steenkamp, who was shot dead at his luxury Pretoria home.
He had been contracted to compete in races in Australia, Brazil, Britain and the United States between March and May.
"I have decided that following these tragic events that we have no option but to cancel all future races that Oscar Pistorius had been contracted to compete in, to allow Oscar to concentrate on the upcoming legal proceedings," manager Peet van Zyl said on Sunday.
Read more:
Bloodied bat found in Pistorius’s home
Oscar has signs of narcissistic disorder: experts
Oscar Pistorius shot his girlfriend four times through bathroom door: media
Pistorius was 'dangerously reckless' with guns