St. Louis CITY SC isn’t joining MLS until next year. They did a smart thing, starting their academy team two years out and starting their MLS Next Pro team the year prior to joining the top flight. This should help their First Team find some utility players and give them experience within the organization prior to the pressures of their expansion season.
A few of their talents are probably already MLS quality. The best of those is Josh Yaro, the former No. 2 draft pick of the Philadelphia Union, who has played for several teams in the USL Championship.