 The Lancaster Rattlers entered the USL Premier Development League in 2007 as the first ever soccer franchise from the Antelope Valley area of Southern California.They played their first competitive game on April 28, 2007, a 2–1 loss to fellow expansion franchise, Ventura County Fusion, and this unfortunately set the standard for a disappointing first season.Four straight losses – including a 5–1 hammering by Bakersfield Brigade – left the Rattlers languishing at the bottom of the table.