Olympic guru Lord Coe is returning to his days of athletic prowess by captaining a team of celebrities for a Sport Relief challenge.
He will go up against a team captained by comic John Bishop for the Clash Of The Titans in a series of head-to-head challlenges which will be screened by the BBC next month.
They and their team-mates will compete in a series of events including track cycling, rhythmic gymnastics, synchronised swimming and a swimming relay, some of which will be filmed at the Queen Elizabeth Olympic Park.
Clare Balding and Gabby Logan will be on hand to host the programmes.
Lord Coe was a celebrated middle-distance runner, setting world records and picking up Olympic titles before heading into politics and later overseeing London 2012 as chairman of LOCOG (the London Organising Committee for the Olympic and Paralympic Games).
"I spent the best part of 10 years preoccupied with the planning and delivery of London 2012. Not once did I imagine that less than two years later I would find myself back at the park competing.
"I hear John Bishop has quite a competitive streak but I know these venues inside out - something that, probably unrealistically, I am hoping will play to my advantage."
John amazed the nation - and himself - when he undertook his "week of hell" challenge for Sport Relief two years ago as he cycled, rowed and ran from Paris to London.
He said: "Two years on, I am back again to take on whatever challenges Sport Relief throws at me. Am I intimidated by going up against four-time Olympic medal winner Sebastian Coe? No, I say, bring it on - may the best man win."
Their contest will be screened during the Sport Relief Night on the BBC on Friday, March 21.