FC Dallas vs Sporting Kansas City: What we learned

Sporting Kansas City is a hard team to go up against in their stadium. An early red card didn't stop them from getting the result they needed against FC Dallas to advance to the semifinals of the US Open Cup. FC Dallas is on a home six-game unbeaten run, but they are struggling away from home.

Offensive struggles (they definitely aren't gone yet)

FC Dallas had about 85 minutes to try to break down Kansas City with a man advantage. That was with Dallas' full attacking arsenal except Kellyn Acosta, and was against a Kansas defense missing both Graham Zusi and Matt Besler, who were with the USMNT. They also obviously didn't have Seth Sinovic, the player who was sent off. These offensive…