A spokesman for the International Olympic Committee in Switzerland said: ‘Sir Martin Sorrell has been a long-term friend and adviser of the Olympic movement, regularly offering advice and counsel.
‘He played a key role in the Olympic Congress in 2009 where he helped the movement formulate its strategy to reach out to young athletes and sports fans.’
A WPP spokesman said: ‘Martin has had a long association with the Olympic movement. He supported the successful London 2012 bid campaign, including in Singapore during the run-up to the vote in 2005. The IOC invited him to take part in the torch relay and he was delighted to accept.’