The Ireland Premier Division, also known as the SSE Airtricity League, is the top professional soccer league in Ireland. It was established in 1985 and is organized by the Football Association of Ireland. The league consists of 10 teams who compete in a round-robin format, playing each other twice throughout the season. The most successful team in the history of the league is Shamrock Rovers, who have won the title a record 17 times. An interesting fact about the league is that it was initially known as the League of Ireland Premier Division before being rebranded in 2007.