Paralympic gold medallist Oscar Pistorius will not compete again this year as he awaits trial for murder.
The 26-year-old South African is on bail after being charged with the murder of girlfriend Reeva Steenkamp but can compete before his court case is heard.
However his agent, Peet van Zyl, says the six-time Paralympic champion isn't mentally ready to return to the track.
It means Pistorius will not compete in the IPC World Championships in Lyon in July.
Pistorius was arrested after shooting Steenkamp dead on 14 February and has not competed since.