Detroit has once again been passed over for a Major League Soccer expansion team.

St. Louis is the latest city to land a new MLS team amid the league's campaign to add more teams around the country. MLS commissioner Don Garber announced the new team Tuesday in St. Louis.

"It's hard to imagine that we were able to have a thriving professional soccer league without having the city of St. Louis being part of it," Garber said at the event. "Well, imagine no more."

The addition of St. Louis would bring the league up to 28 teams by 2020, with two more expected in the future.

Detroit is not among them, despite efforts by billionaires Dan Gilbert, Tom Gores and the Ford family — the owners of NBA teams the Cleveland Cavaliers and Detroit Pistons, as well as Detroit's NFL team the Lions.

Crain's reported in March that the plan was all but dead for now, and Tuesday's announcement confirms it. St. Louis fills the last slot of expansions for the league. While the MLS has expressed interest in growing further, Garber has indicated several cities not including Detroit that would be next in line.

In 2016, Detroit was favored for a team. Garber took to the idea of two of the market's wealthiest businessmen building a new $1 billion soccer stadium at the site of the unfinished Wayne County jail. But after the idea for the new stadium was scrapped, the bid lost all its steam. The league has dismissed alternative plans that would include retrofitting Ford Field and indicated that an expansion to the city would require a soccer-specific stadium. That doesn't seem to be anywhere on the horizon.

"I've been in regular conversations with [Detroit]," Garber told the St. Louis Post-Dispatch in March. "And we still struggle with their stadium plan. We think that in order for us to be successful in that city, we need a soccer-specific stadium."

Even without an MLS team, the Detroit market will have a professional soccer team next year when the semi-pro Detroit City FC joins the National Independent Soccer Association. The popular Hamtramck-based team had been itching to go pro for the past few years.

Inter Miami and Nashville SC will join the league in 2020, and Austin is scheduled to join the following year, ProSoccerUSA.com reported. Two more teams are also expected beyond that.