Careers Quote by Mohamed Farah

I have never had a single positive doping test, and I do not take performance-enhancing drugs.

— Lance Armstrong

I am against performance-enhancing drugs. I have never taken them and I never will take them.

— Marion Jones

I have never taken performance-enhancing drugs whether banned or unbanned, on or off the list, at any time. In fact, I underwent hundreds of…

— Stephen Roche

Twenty-plus-year career, 500 drug controls worldwide, in and out of competition. Never a failed test. I rest my case.

— Lance Armstrong

Drugs won't enhance your performance.

— Morgan Brittany

I don't want to be an exception, because I was very outspoken about Performance Enhancing Drugs. It would be bad for my reputation if…

— Georges St-Pierre

Performance-enhancing drugs are an illusion. I wish I had never gotten involved with steroids. It was wrong. It was stupid.

— Mark McGwire

I never performed on drugs. That'd be stupid. It's the same thing with athletes. They can't perform when they have cocaine problems.

— Robin Williams

[A 2005 response to doping allegations] Unfortunately, the witch hunt continues and tomorrow's article is nothing short of tabloid journalism. The paper even admits…

— Lance Armstrong

I faild a drug test because I had too much fuck it in my system.

— Frenchico

I've never done drugs in my life.

— Chris Slade

If you're taking performance-enhancing drugs and you get caught, in my mind, you should be banned for life.

— Michael Bisping