Undefeated Union host short-handed Atlanta United

(Photo credit: Steve Roberts-USA TODAY Sports)
Two Eastern Conference rivals will slug it out Sunday afternoon when Atlanta United host the Philadelphia Union.

The Union (3-0-3, 12 points) are undefeated in their first six matches of the season and currently sit in second place in the conference title behind the New York Red Bulls. Their goal difference of plus-five was the best of any team in the East heading into the w