The Northern League was one of the first two independent baseball leagues to begin play in 1993, with the Frontier League being the other. Its last season was 2010. After that season, several teams left the circuit to join (or re-join) leagues. Here is the breakdown:
- To the American Association –> Fargo-Moorhead RedHawks, Gary RailCats, Kansas City T-Bones, Winnipeg Goldeyes
- Returning to the Frontier League –> Rockford Riverhawks, who were with the Northern League for one season (2010) after having been in the Frontier League
- Folded –> Joliet Jackhammers, Schaumburg Flyers
- To the North American League –> Lake County Fielders
The owners of the entity which operated the Northern League filed a lawsuit against their lawyers who drafted the original agreement. It deals with the wording of the penalties for those teams which left the league voluntarily.
Here is more information on this lawsuit: http://www.ballparkdigest.com/201205044827/independent-baseball/news/nothern-league-lives-on-in-court
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