Mo Farah has become the second man in the world and the first Briton to hold the 10,000m and 5,000m Olympic and World titles simultaneously.
He joins Ethiopia's Kenenisa Bekele in athletics history, after winning the 5,000m final at the World Championships in Moscow.
Mo already made history on Saturday, by becoming the first British man to hold a 10,000m world title. He won gold in both events at the 2012 London 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?