An Al Jazeera investigation into performance enhancing drugs is still in the spotlight. 

The investigation includes the claims of a pharmacist who previously interned at an anti-ageing clinic in Indiana.  He told an undercover reporter that the clinic shipped human growth hormone to the wife of NFL quarterback Peyton Manning. 

One of the main points of contention in the report are the dates that Charlie Sly worked at the clinic in Indianapolis. 

Watch Deborah Davies' report above.

Watch the full documentary - The Dark Side - here

Source: Al Jazeera