Complex sentence: The Canadian National Soccer League, known as the National Soccer League until 1993, was a professional soccer league in Canada that existed from 1926 to 1997 and was then re-branded as the Canadian Professional Soccer League in 1998 and subsequently as Canadian Soccer League in 2006.
Split into simpler sentences: The Canadian National Soccer League, known as the National Soccer League until 1993, was a professional soccer league in Canada that existed from 1926 to 1997. It was then re-branded as the Canadian Professional Soccer League in 1998 and subsequently as Canadian Soccer League in 2006.