Atlanta United find themselves in a massive 3-0 hole after their Concacaf Champions League quarterfinal first leg defeat to the Philadelphia Union on Tuesday night at Mercedes-Benz Stadium. Despite dominating large portions of the match and creating many good scoring opportunities, the Five Stripes still managed to end up on the wrong side of a lopsided score line. While losing is never easy to take, there are plenty of positives for this side to build on after suffering the first loss of the Gabriel Heinze era. Here are a few thoughts on a frustrating result.