Most conversations about going pro stop at MLS. MLS is one league of several a paid American player can end up in, and the ones below it are where a lot of careers actually happen. Here is how US Soccer's professional structure is arranged, what each league publishes about itself, and which parts of the ladder a youth player can realistically aim at.
The divisions, as US Soccer assigns them
The US Soccer Federation sanctions professional leagues in numbered divisions. In its own listing for the 2026 season, the men's structure is:
- Division I: Major League Soccer. 30 clubs in 2026, with an active roster capped at 30 players.
- Division II: the USL Championship.
- Division III: MLS NEXT Pro and USL League One.
That last line is the one families most often have wrong. MLS NEXT Pro is a third-division league, not a second-division one, and it sits alongside USL League One rather than above it.
On the women's side there are two first divisions. The NWSL runs 16 clubs in 2026. The USL Super League received Division One sanctioning from US Soccer in February 2024 and kicked off that August, so it is a top-flight league by sanctioning rather than a second tier.
MLS NEXT Pro
Launched in 2022, MLS NEXT Pro has 30 clubs in 2026, 27 of them the reserve sides of MLS clubs and three independent. The reserve sides are the ones whose names end in "2" or "II," and this is the league they play in.
Its roster guidelines are unusually open, and the details matter to a youth family. An active roster runs to 35 players, of which up to 30 may be professionals and up to 11 amateurs. There are no age limits. And there is no salary structure at all: "There is no salary cap in MLS NEXT Pro and there are no salary limits on player compensation (i.e., there is not a minimum salary or maximum salary)." MLS publishes minimum salaries for its own league. Its reserve league publishes none, so nobody can tell you what the floor is.
The amateur slots are the part that touches a youth player. They let academy players appear in these matches without signing a contract, and the league caps it at five youth academy players on the field at once in an official match. Whether a particular appearance affects NCAA eligibility is a question for the NCAA Eligibility Center rather than for the league, and it is worth asking before a first call-up rather than after.
The league also publishes what it has produced: more than 230 players have signed MLS first-team contracts after spending time in MLS NEXT Pro, and more than 1,300 MLS NEXT academy players have appeared in it since 2022. Those are counts, not conversion rates, and the league does not publish the denominator that would turn them into one.
The USL leagues
The USL Championship is the second division and operates independently of MLS. Its clubs are in cities with and without MLS teams, and players can spend whole careers there without ever being on an MLS roster.
USL League One is the third division, alongside MLS NEXT Pro.
In March 2025, USL club owners voted to adopt promotion and relegation across their leagues, tied to launching a new USL Division One. Promotion and relegation means the bottom clubs in one division drop into the one below and the top clubs rise, which is how most of the world runs soccer and how no US league has ever run it. The vote happened. The new division has not started, and the launch year has moved since the vote, so treat it as announced rather than running.
USL League Two is not a professional league and is not a fourth division. USL calls it "the premier pre-professional league in the United States," with 158 clubs across 37 states, founded in 1995, playing from early May to mid-July. That summer window is the point: it is where college players spend the offseason without losing NCAA eligibility, and USL says players have moved from it into the USL Championship, League One, MLS and Europe.
How players move between the levels
MLS publishes several mechanisms, and they are worth naming because they are what a club means when it talks about a "pathway."
A club may sign its own academy player directly through the Homegrown Player rule, without going through the draft. It may hold priority on up to seven players from its MLS NEXT Pro affiliate. It may loan a player aged 24 or younger to a lower-division club for a full season in a dedicated roster slot. And it may call players up from the affiliate on short-term agreements, up to four per match.
For college players, the entry point is the MLS SuperDraft, and the calendar is the part people get wrong: it runs in December, not January. The 2026 edition was held on December 18, 2025, over three rounds, with 90 selections from a published eligible list of 436 players. Nobody publishes how many drafted players go on to sign an MLS contract, and figures in circulation for that trace back to no source at all.
For women, the draft is gone. The NWSL's 2024 collective bargaining agreement abolished it, so a college senior negotiates directly with clubs instead of waiting to be assigned.
What this means while your kid is 14
Advice from here, not findings.
The useful thing about knowing the structure is that it changes what "we develop professionals" means when a club says it. There are follow-up questions that have checkable answers: does this club have an MLS NEXT Pro affiliate, has it signed a Homegrown Player, and where did its last few graduates actually go. A club that has done these things can name them.
What the structure does not do is shorten the odds, and the realistic odds of going pro sets out what can and cannot be counted. Going pro: the real path covers the routes themselves, and the club finder shows which clubs near you sit at which level.
Where these numbers come from
- US Soccer, 2026 Lamar Hunt US Open Cup format (December 2025). The division assignments: MLS in Division I, the USL Championship in Division II, MLS NEXT Pro and USL League One in Division III.
- MLS Roster Rules and Regulations, 2026. The 30 clubs and 30-player active roster, the Homegrown Player mechanism, affiliate priority for up to seven players, the season-long loan slot and short-term agreements.
- About MLS NEXT Pro and MLS NEXT Pro's fifth season kicks off February 27. The 30 clubs, the 27 MLS reserve sides and three independents, and the 230-plus first-team contracts and 1,300-plus academy appearances.
- 2026 MLS NEXT Pro Roster Guidelines. The 35-player roster, 30 professional and 11 amateur slots, no age limits, no salary minimum or maximum, and the five-academy-players-on-the-field limit.
- ESPN, USL votes to adopt promotion and relegation (March 2025). The owners' vote and the planned Division One.
- USL League Two, About. The pre-professional description, 158 clubs across 37 states, the 1995 founding and the summer season.
- USL Super League receives Division One sanctioning (February 2024). Division One status and the August 2024 kickoff.
- ESPN, NWSL expansion teams Denver and Boston. The 16-club 2026 NWSL.
- NWSLPA, the collective bargaining agreement. The abolition of the entry draft.
- 2026 MLS SuperDraft rules and regulations and MLS announces the eligible player list for the 2026 SuperDraft (December 2025). The December 18 date, three rounds, 90 selections and 436 eligible players.