(London) Mo Farah has withdrawn from today’s Diamond League meeting, a day after speaking of his anger at doping claims against his coach.
In a statement, the double Olympic and world champion said the furore over allegations surrounding Alberto Salazar had left him feeling “emotionally and physically drained”.
It comes after an investigation alleged that Salazar doped US 10,000-metre record holder Galen Rupp in 2002.
Rupp – who later became Farah’s training partner – and Salazar deny the claims.
There is no suggestion Farah himself has broken any rules.
Announcing his decision to pull out of today’s event in Birmingham, Farah said: “This week has been very stressful and taken a lot out of me.
“I have not been able to focus properly on today’s race and after the events of the last few days feel emotionally and physically drained.
“I want to run well in the IAAF World Athletics Championships in Beijing and have decided it is better for me to go back to the US, seek answers to my questions and get back into training.
“I apologise to the people who bought tickets to come and watch me race and ask for your understanding at this time.”
Farah said on Saturday he was angry that his “name was being dragged through the mud” following the BBC investigation into the endurance coach.
He told reporters: “I spoke to him last night and said ‘What’s going on – I need answers?’ He said to me ‘I can prove this to you’.
“Yes, there are answers that the public are owed – I myself need to know what’s going on.
“I am not leaving Alberto because I have not seen any clear evidence. If the allegations are true I will be the first to leave him.”
The 32-year-old, who won 5,000 and 10,000-metre gold at the 2012 London Olympics, reiterated that he had not taken any banned substances nor been offered any by Salazar.
UK Athletics has said it will conduct an “internal audit” of the “performance management system surrounding Farah and the endurance programme”.