the NCAA's Temple University Owls football team. Prior to the completion of the then PPL Park, the Union played their home opener at Lincoln Financial Field on April 10, 2010, against D.C. United as well as their May 15 match against FC Dallas. Originally just scheduled to play only the home opener at Lincoln Financial Field, the second game was played there due to construction delays at Subaru Park. Lincoln Financial Field remains the team's secondary home, for matches with anticipated high attendances, such as a friendly against Manchester United, during their 2010 tour of North America. For the home opener, the team limited ticket sales to the lower bowl and club sections, totaling about 37,500 seats. On June 27, the Union officially opened their home with a 3–2 win over Seattle Sounders FC. Lincoln Financial Field also hosts international friendlies involving teams other than the Union; the most recent being Real Madrid against the Scottish Premier League's Celtic FC in August 2012. Celtic FC met with the Union in their first international friendly in July 2010. Training facility The Philadelphia Union training fields are right outside Subaru Park; Chester, Pennsylvania. The training complex features 2 grass fields that were constructed in fall 2014. Prior to having dedicated training fields, the Union was practicing at a nearby municipal park called Chester Park or directly at Subaru Park. In 2016, the Philadelphia Union opened a 16,500 square foot training facility and offices built in the former machine shop of the Chester Waterside Station of the Philadelphia Electric Company. Youth development Second team On August 19, 2015, the team announced that they would operate a reserve team in Bethlehem, Pennsylvania that will compete in the United Soccer League (USL) starting in 2016 with matches being played at Lehigh University's Goodman Stadium. As a part of the announcement, the Union agreed to dissolve their partnership with the Harrisburg City Islanders. On October 27, 2015, Bethlehem Steel FC's name, crest, and colors were officially announced during a ceremony held at the ArtsQuest at SteelStacks. "Steel FC" alludes to the historical Bethlehem Steel F.C. soccer club, which played from 1907 to 1930. The name was chosen following a fan poll held between September 8, 2015, and September 30, 2015. In December 2019, the Union announced that the Bethlehem Steel identity would be retired ahead of the 2020 season and the club would become known as