Pressure on Mo Farah's coach Alberto Salazar continues to mount as reports have claimed that a bag of needles was found at a training camp used by the former long-distance runner.
A BBC Panaroma documentary recently revealed that the 56-year-old is alleged to have committed doping offences alongside American athlete Galen Rupp.
Now, the Daily Mail has released evidence given to the US Anti-Doping Agency by John Stiner, who was employed by Salazar as a massage therapist for an altitude training camp in Park City, Utah, in June 2008.
Stiner told the USADA that he found vials of clear liquid in a fridge, as well as a bag of unused hypodermic needles.
The publication quotes Stiner as saying: "[Salazar] says there's a package, or a product, 'in the refrigerator that I also want you to take and keep it cold - it's got to be kept cold'. I looked at the vials and they had a white tape, like someone had placed them very neatly on there. It said 'allergy one' and 'allergy two'."
Stiner went on to say that he found a bag of needles in the bathroom. He said: "Hypodermic needles, in a big bag, unused. Maybe 25, maybe 50 needles. While I'm doing this I'm starting to wonder what is going on here?"
Both Salazar and Rupp strongly deny the allegations.