Sheffield Imperial Sunday League

The Sheffield Imperial Sunday League (SISL) is an amateur association football league in Sheffield, England. It was founded in 1923 and currently has over 100 teams competing in three divisions: the Premier Division, the Championship, and the First Division.

The SISL is affiliated to the Sheffield & District Football Association and the Football Association. It is one of the largest and most popular Sunday leagues in the Sheffield area.

The SISL was founded in 1923 by a group of amateur footballers in Sheffield. The first season of the league consisted of just six teams, but it quickly grew in popularity and now has over 100 teams competing.