US Open Cup R of 16: USL results yield concerns- Tampa Bay dominate yet lose; Charleston frustrating; Sacramento needs ET to advance

What does this round tell us about the gap between MLS and USL?

USL Championship clubs fared poorly versus MLS competition in the US Open Cup Round of 16, despite controlling the flow of play in many of the matches.

Charleston blows its opportunity

Scratch the idea that Charleston was the side that could end the run of MLS Champions in US Open Cup that goes back to 1999. The Battery huffed and puffed an awful lot but…