British athlete Jessica Ennis-Hill and sports commentator Clare Balding are among the sporting community who have taken to Twitter to congratulate Mo Farah, after he won the 5,000 metre finals at the World Championships.
Unbelievable! Mo Farah is just immense.
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?