LONDON (Reuters) - Britain's Olympic and world champion Mo Farah has split with long-time coach Alberto Salazar because he wants to move back to London with his family, he said in an interview on Monday.
Farah, who moved to Portland in 2011 to work with distance guru Salazar, said the decision had nothing to do with doping allegations surrounding the coach, which have been denied.
"I'm not leaving the Nike Oregon Project and Alberto Salazar because of the doping allegations," Farah, 34, was quoted as saying by The Sun newspaper's website.
"This situation has been going on for over two years, if I was going to leave because of that I would have done."
In February, Salazar denied administering banned supplements to his athletes and issued a firm rebuttal of what he said were false allegations against him in a British newspaper.
The Sunday Times reported that Salazar had used prohibited infusions of supplements to improve the performance of his runners, citing what the newspaper said was a leaked United States Anti-Doping Agency (USADA) report.
But Farah said in Monday's interview: "As I've always said, I am (a) firm believer in clean sport and I strongly believe that anyone who breaks the rules should be punished.
"If Alberto had crossed the line I would be out the door but USADA has not charged him with anything. If I had ever had any reason to doubt Alberto, I would not have stood by him all this time."
Farah, who was born in Somalia and moved to Britain at the age of eight, won 5,000m and 10,000m gold at the 2012 and 2016 Olympics as well as six world titles at those distances.
He ended his track career this year to concentrate on road running and will now work with Gary Lough, who previously coached his own wife and women's marathon world record holder, Britain's Paula Radcliffe.
"I'm leaving (Salazar and the U.S.) simply because my family and I are moving back to London," said Farah, who won 10,000m gold and then a silver in the 5,000m at the World Athletics Championships in London in the final track race of his career.
(This version of the story has been refiled to correct typo in headline)
(Writing by Ken Ferris; Editing by Ian Ransom)