Drug Quote by Marion Jones

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…

— Mohamed Farah

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

— Mark McGwire

Drugs won't enhance your performance.

— Morgan Brittany

What is there not to market? I fight like hell. I'm built a certain way, never taken performance-enhancing drugs.

— Tyron Woodley

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

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

— Michael Bisping

The steroids I did were on a very, very low dosage. I didn't want to take a lot of that. I didn't want to…

— Mark McGwire

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

— Lance Armstrong

I've never used performance-enhancing drugs of any kind, and I never will. I've never met or spoken with Tony Bosch or used any substances…

— Gio Gonzalez

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

[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

If you sit in a position where decisions that you take would have a serious effect on people, you can't ignore a lot of…

— Thabo Mbeki