Authors:

I have never taken performance-enhancing drugs in my life and I never will. Over the course of my career I have taken hundreds of drugs tests and every single one has been negative.

"Mo Farah breaks silence: I have never taken performance-enhancing drugs" by Sean Ingle, www.theguardian.com. June 19, 2015.
I have never taken performance-enhancing drugs in my life and I never will. Over the course of my career I have taken hundreds of drugs tests and every single one has been negative.