The Qatar Stars League, founded in 1963, is the top professional football league in Qatar. This Gulf nation has a rich footballing history, with the league being one of the oldest in the region. The competition structure consists of 12 teams, each battling it out for the coveted title. Al-Sadd and Al-Rayyan are the most successful teams in the league's history, having won the championship multiple times. An interesting fact about the Qatar Stars League is that it was the first professional league in the Middle East to introduce a salary cap for clubs.