Mo Farah will go for the 'double double' at the athletics World Championships in Moscow today when he runs in the final of the 5,000 metres.
The British runner is aiming to add the title to the 10,000 metre gold he won in Russia earlier this week.
Farah won 5,000m and 10,000m gold at the London 2012 Olympics.
Mo Farah is hailed as Britain's greatest ever athlete after repeating his Olympic success with a double victory at the World Championships.
He won two Olympic gold medals last year and has already won gold this year in the 10,000 metres but is he the greatest of all time?