sentences:  Both are the official reserve sides for MLS teams, respectively the Union and Columbus Crew SC.The state had a third team in the USL Championship, the Harrisburg-based Penn FC, but that team suspended professional operations for the 2019 season and ultimately folded.Pennsylvania also has several indoor soccer and amateur teams, including the Harrisburgh Heat of the Major Arena Soccer League, Reading United A.C. and the Pittsburgh Riverhounds U23 of USL League Two (formerly the Premier Development League), and numerous teams in the National Premier Soccer League.