The Tunisian Professional League 1, also known as Ligue Professionnelle 1, is the top-tier football league in Tunisia. It was established in 1921, making it one of the oldest leagues in Africa. The league consists of 16 teams competing for the title. Historically, Espérance Sportive de Tunis and Club Africain have been the most successful teams, with numerous league titles between them. An interesting fact about the league is that it has a unique competition structure, with teams playing each other twice in a round-robin format.