St. Louis CITY SC entered Major League Soccer in 2023, beginning their journey in North American professional soccer. Expansion teams in MLS face unique challenges including roster construction through expansion drafts, player acquisitions, and building team chemistry in a compressed timeline.
First seasons in MLS set the foundation for a club's identity and culture. The early results, fan engagement, and organizational structure established during a team's inaugural campaign often shape the franchise's trajectory for years to come. St. Louis CITY SC's first season helped establish the club's presence in St. Louis and laid the groundwork for future success.