Johnson says 40% of top athletes on drugs

SHAMED sprinter Ben Johnson has claimed 40% of sportsmen are using performance-enhancing drugs.

Johnson was stripped of his Olympic gold medal in 1988 and banned for two years after testing positive for anabolic steroid Stanozolol.

The Canadian, who was later banned for life after testing positive for a second time, maintains he was a victim of sabotage at the Seoul Olympics.