The Major Indoor Soccer League (MISL), formerly known as the National Indoor Soccer League, was a professional indoor soccer league which began play in 2008. It was the third league to be known as the Major Indoor Soccer League after the MISL I and MISL II. The MISL name is arguably the most recognizable name in indoor soccer due to its history dating back to 1978. The league name and assets are currently owned by the United Soccer Leagues. The departure of six teams which joined the Professional Arena Soccer League after the 2013–14 season effectively ended the MISL.