Atlanta United 2 is the reserve team of the Major League Soccer club Atlanta United FC. The team plays in the USL Championship, the second tier of American soccer. The team was established on November 14, 2017 and began their first professional season in March 2018. History In November 2017, the USL, a Division II sanctioned league by the United States Soccer Federation (USSF), announced that Major League Soccer's Atlanta United had acquired a USL affiliate team and would begin play in the 2018 season. On January 9, 2018, the team name was revealed as Atlanta United 2.