The 2025 Major League Soccer season is the 30th in the league’s history, and while it has made great strides in attempting to replicate its European counterparts, the MLS still lags behind several other top soccer leagues. One reason is its lack of promotion and relegation.
While there are no indications that the system is coming anytime soon for the league, American soccer will indeed adopt it with another professional league, the United Soccer League (USL).