Atlanta United FC
Atlanta United FC, playing in the Eastern Conference of Major League Soccer, was founded in 2014. They use the modern Mercedes-Benz Stadium, with a potential capacity of about 73,000 spectators, for home games, where they also play American football. So it's no surprise that this stadium has set a league record for attendance.
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New England Revolution
New England Revolution soccer team from Foxborough, just outside Boston, has been playing the unpopular ball sport since 1994. And since 1996, it's been one of the ten founding teams of Major League Soccer. Their Gillette Stadium has a capacity of about 20,000 fans for soccer, but this can be increased significantly if needed, as it otherwise holds upwards of 65,000 spectators for American football games.
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