Mo Farah, the four-time Olympic champion for Great Britain, announced on his social media channels Monday that he has departed the Oregon Project and will no longer be coached by Alberto Salazar, This Runner Conquered the Leadville 100 ... in Jeans.

Farah told the Sun that the decision to move home to London with his wife and three children had nothing to do with the ongoing United States Anti-Doping Agency (USADA) investigation into Salazar and the Oregon Project.

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“This situation has been going on for over two years,” Farah said. “If I was going to leave because of that I would have done [so].”

Under Salazar’s guidance, Farah, 34, became the most decorated 10,000- and 5,000-meter track star on the modern international stage. After winning gold and silver at those respective distances during the 2017 world championships in London, Farah said he would retire from track racing to focus on road competition. He’s scheduled to compete at the 2018 London Marathon, which will be his second attempt at the distance.

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Farah also announced that he will now be coached by Gary Lough, husband and former coach of Paula Radcliffe, the women’s marathon world-record holder.

Salazar told the Oregonian that the decision to split was mutual. 

Health & Injuries David Ramos/Getty Images alleging that Salazar had facilitated and encouraged abuse of prescription medications and supplements by his athletes in order to enhance performance. The coach has adamantly denied all accusations. No current or former Oregon Project athletes have tested positive for banned substances and no disciplinary measures have been taken against Salazar or any associates of the team.