British Olympic champion Mo Farah defended his reputation ahead of the Chicago Marathon Friday, and suggested there was an "agenda" against him.
Farah was bombarded with questions about his former coach Alberto Salazar who has been banned for doping violations.
The Brit, who has not been accused of any wrongdoing, worked from 2011 to 2017 with Salazar, who was given a four-year ban by the U.S. Anti-Doping Agency (USADA) on Sept. 30.
Speaking for the first time since Salazar was suspended, he responded angrily to questions about his former mentor, with whom he achieved some of his best performances.
"It's very disappointing to see you guys going at it again and again, and headlines, 'Farah, Farah, Farah'," he told a news conference.
"There is a clear agenda to this. I know where you are going with it. I have seen it with Raheem Sterling and Lewis Hamilton.
"I am probably one of the most tested athletes in the world. I get tested all the time and I'm happy to be tested anytime, anywhere and for my sample to be used to keep and freeze it.
"I'll just say there's no allegation against me. I've not done anything wrong.
"If I tell you guys and talk to you guys and be nice to you, you'll still be negative. If I don't talk to you, you'll still be negative.
"I'm aware I can't win. You're already made up your mind what you're going to write -- that is a fact."
Asked if he regretted staying with Salazar, particularly after a 2015 BBC documentary made a series of allegations against the American, Farah said he had confronted his coach.
"I was out in Birmingham [England] racing, I pulled out [of] the race in 2015," he added. "I wanted some answers and I flew to Portland to get some answers from Alberto.
"Talked to him face-to-face and he assured me at the time, 'These are just allegations. This is not true. There are no allegations against you, Mo.' He promised me. And that hasn't been true.
"This is not about Mo Farah, this is about Alberto Salazar. I am not Alberto. I was never given anything. I am not on testosterone or whatever it is.
"At the time I never saw any wrongdoing when I was there. This allegation is about Salazar, not Mo Farah."