for 2017 and briefly an affiliate member of the new Arena Pro Football. In 2017, the EIFC played all league games outdoors in Bartow, Florida. Chicago Blitz – After the team went for sale near the end of the 2016 season, the team ceased operations for 2017. Joined the semiprofessional regional Midwest Professional Indoor Football for 2018 but left the league after three games. Columbus Lions – Joined for the 2016 season and won the AIF championship. One week later the team announced they would not return to the AIF for the 2017 season and the owners formed a new league called the Arena Developmental League, which then changed its name to National Arena League. Erie RiverRats/Storm – Later called the Erie Explosion. Played in Professional Indoor Football League before league folded in 2015. Initially part of the Indoor Football Alliance as a member of the reorganized Continental Indoor Football League but went on hiatus for 2016, never to return. Florida Tarpons – Joined for the 2016 season from the recently defunct X-League Indoor Football. Joined the new Arena Pro Football for 2017 after the AIF ceased operations. Georgia Firebirds – Joined for the 2016 season. Joined the new National Arena League for 2017 after the AIF ceased operations. Harrisburg Stampede – Moved to the Professional Indoor Football League after their 2013 championship, then folded following the 2014 season. High Country Grizzlies – Announced as 2017 expansion team prior to the AIF folding. Joined the new National Arena League for 2017 after the AIF ceased operations. Lehigh Valley Steelhawks – Joined for the 2016 season but left after one season. Joined National Arena League for 2017 prior to the AIF ceasing operations. Maryland Eagles – Full AIF member in 2013, and then a part-time traveling team from 2014 to 2016 while also playing full-time in a regional semi-professional league. After the AIF ceased operations, went semi-pro only. Miami Valley Silverbacks – Joined AIFL for 2006 season but left after one season. Joined Continental Indoor Football League in 2007 until the 2012 season. Played as Dayton Silverbacks from 2010 to 2012. River City Raiders – Joined for the 2016 season from the X-League Indoor Football where it was known as the St. Louis Attack. Briefly joined Champions Indoor Football before joining Arena Pro Football for the 2017 season after the AIF ceased operations. Savannah Steam – Joined for the 2015 season