Major League Soccer (USA)

History & background

Early soccer leagues in North America

Before Major League Soccer (MLS), there were several attempts at organised professional soccer leagues in the United States and Canada. One major predecessor was the North American Soccer League (NASL), which ran from 1968 to 1984. The NASL was the first truly national top-flight league to include clubs from both countries. It became very popular in the 1970s, especially after signing international stars like Pelé and Franz Beckenbauer. However, the league eventually collapsed in 1984 due to over-expansion and financial problems. For a decade after that, there was no stable top professional outdoor soccer league in the USA or Canada.

The birth of Major League Soccer

MLS was officially founded in 1993. This was part of the United States’ bid to host the 1994 FIFA World Cup. A condition from FIFA for hosting the tournament was that the U.S. had to establish a top-level professional league. The league’s first season was in 1996, and it began with 10 clubs. In the early years, the focus was on building a legitimate league, finding a fan base, securing stable ownership, and learning from the mistakes of earlier leagues.

Growth & key milestones

Over time, MLS has expanded both in the number of teams and geographically, with new clubs in both the US and Canada. A key milestone was the introduction of the Designated Player Rule (also known as the “Beckham Rule”) which allows clubs to sign star players whose salaries are above the typical salary cap. This has boosted visibility, fan interest, and the quality of the league. Another major step has been the development of soccer-specific stadiums and improved infrastructure, which has helped with revenue and sustainability.

Modern era & positioning

In recent years, MLS has grown to around 30 clubs and continues to expand. The league takes part in domestic and international competitions, such as the US Open Cup, the Canadian Championship, and CONCACAF competitions. This helps to showcase the league’s quality and give clubs more exposure. MLS has worked hard to build a sustainable model, balancing growth with financial controls. This is to avoid past mistakes, such as over-spending and instability.

League structure & governance

Single-entity model

MLS operates under a single-entity ownership model. This means that the league itself owns the players’ contracts, league trademarks, and shared rights. Individual clubs are run by “investor-operators” who have the right to run a team. These owners don’t directly own the players; instead, the player contracts are with the league. Clubs can negotiate and suggest signings, but MLS must approve them. This model is designed to control costs, ensure a competitive balance between teams, and keep the league stable.

Governance bodies

– MLS board of governors: This is made up of all the investor-operators. They set policies for expansion, major business decisions, and strategic direction.
– Commissioner / CEO: The top executive in the league. They oversee the day-to-day operations, carry out the strategy, work with clubs, and negotiate media rights.

Club ownership & operator rights

Clubs are run by investor-operators who pay a fee to operate a franchise. They manage all local operations, including hiring coaches, marketing, and stadium issues. These owners also get to keep local commercial rights, such as local sponsorships and stadium naming rights. However, certain revenues and expenses are shared or controlled by the league, such as national media deals and some player costs.

Roster, salary & competitive balance rules

MLS has rules for the number of players on a squad, senior versus reserve players, and spots for international and homegrown players. This helps ensure some standardisation across all clubs. There is also a salary cap, with special rules like the Designated Player Rule (also known as the “Beckham Rule”). This allows clubs to spend above the base salary cap for star players, or to “buy down” a player’s salary so they fit under the cap.

Other governance / legal aspects

The single-entity model has been scrutinised legally, but MLS has successfully defended its structure in court. This legal structure also means that trademarks and intellectual property, such as logos and the league name, are owned by MLS, and clubs have a licence to use them.

Competition format: regular season & playoffs

Regular season

– Teams: As of 2025, MLS has 30 clubs across the USA and Canada, split into two conferences: Eastern and Western.
– Match schedule: Each club plays 34 matches during the regular season, with games against teams from both their own conference and the other one.
– Points system: You get 3 points for a win, 1 point for a draw, and 0 points for a loss.
– Standings & tie-breakers: Teams are ranked within their conferences based on total points. If teams are tied on points, tie-breakers are used, such as most wins, goal difference, and goals scored.

Post-season (playoffs / MLS Cup playoffs)

– Qualification: The top nine teams from each conference qualify for the playoffs.
– Wild-card round: In each conference, the teams that finished 8th and 9th play in a single match. The winner goes on to the first round.
– Round one: This is a best-of-three series. The team that finished higher in the league hosts the first and third matches (if needed), while the lower-seeded team hosts the second. There is no aggregate scoring; the first team to win two matches goes through. If a match is a draw, it goes straight to a penalty shootout.
– Conference semi-finals & conference finals: These are single-elimination matches hosted by the higher-seeded team. If the match is a draw after normal time, it goes to extra time and, if needed, a penalty shootout.
– MLS Cup final: This is a single match between the winners of the Eastern and Western Conference Finals. The match is hosted by the team with the better record from the regular season. Extra time and a penalty shootout are used if necessary.

Other key components

– Supporters’ Shield: This is awarded to the team with the most points across all 30 teams in the regular season. It is not a playoff trophy, but it is prestigious and often gives the winner a spot in a continental competition.
– Schedule timing: The regular season runs from late February to October, and the playoffs run from late October to early December. The last day of the regular season, known as “Decision Day,” is typically in mid-October.

Player acquisition, contracts & salary mechanisms

Key concepts & rules

– Roster structure / roster slots: MLS clubs have a limited number of players, who are split into different categories like the Senior Roster and Supplemental Roster. There are different rules for how a player’s salary counts towards the salary cap depending on which roster they are on.
– Salary budget / salary cap: There is a base salary budget that caps how much clubs can spend on their core players. In 2025, this is about US$5.95 million for the standard Senior Roster.
– General allocation money (GAM): This is money given to clubs that they can use to “buy down” a player’s salary so it fits under the cap. This gives clubs flexibility so not all of a player’s salary has to be counted fully against the cap.
– Targeted allocation money (TAM): This is similar to GAM but is for specific players. It can be used to bring in or keep higher-cost players who are not Designated Players.
– Designated player rule (DPs): Clubs are allowed to have a limited number of Designated Players. The total salary of these players can be higher than the salary cap, and only a fixed part of their cost counts towards the cap. This allows clubs to sign star players while keeping financial balance.
– Under-22 initiative: MLS has rules to encourage clubs to sign younger players. These players often have a lower cost against the salary cap or have more favourable contract terms.
– Homegrown player rule: Clubs can sign players from their own academy (“homegrown”) under favourable terms, which encourages youth development.
– International player slots: Each MLS team has a limited number of spots for players who do not have “domestic” status. These spots can be traded between clubs.
– Transfer windows: MLS has set times when clubs can register new international players and make internal trades. In 2025, there have been changes to allow more cash trades between clubs.

Recent / 2025 changes & highlights

MLS has introduced more flexibility in 2025. Clubs can now use unlimited cash to trade for players from other teams in the league without having to use GAM. The secondary transfer window was also moved to better align with the global transfer market, from 24 July to 21 August. Rules around roster composition for young players have also been refined, giving clubs more flexibility to change their roster model during the season. General Allocation Money no longer expires in many cases, which gives clubs more room for long-term planning.

Notable player signings in MLS

Here are some players whose arrival in Major League Soccer was particularly high profile, expensive, or influential.
– Lionel Messi (Inter Miami): Signed in 2023, this was probably the most famous signing in MLS history. His arrival gave a huge boost to viewership, merchandise sales, and the league’s global profile.
– David Beckham (LA Galaxy): He was one of the first players signed under the Designated Player rule in 2007. His arrival helped raise the league’s prestige and attract global attention and sponsorships.
– Zlatan Ibrahimović (LA Galaxy): Known for his excellent goal-scoring and memorable moments, Zlatan’s signing in 2018 was a marquee move that paid off both on and off the field.
– Sebastian Giovinco (Toronto FC): His signing in 2015 was a turning point. He performed excellently, scored a lot of goals, and helped Toronto FC win trophies. He had a huge influence in Toronto and Canada.
– Thierry Henry (New York Red Bulls): A legendary player from Europe, his arrival in 2010 helped bring more legitimacy and fan interest to the league.
– Carlos Vela (LAFC): He scored a record number of goals in a single season in 2018 and helped LAFC become a powerhouse team.
– Josef Martínez (Atlanta United): He was a prolific goalscorer who helped Atlanta become a competitive club very quickly after their founding in 2017.
– Hirving “Chucky” Lozano (San Diego FC): As a key signing for a new expansion club in 2025 with a high-value contract, his arrival shows the recent trend of big-money signings from abroad.
– Cucho Hernández (Columbus Crew): His signing in 2022 was a significant transfer with a large fee, as the club took a gamble on a younger player.
– Gareth Bale (LAFC): A top player from Europe, his signing shows the league’s ability to attract world-class talent.
– Didier Drogba (Montreal Impact): A big name from European football, he had an immediate impact after signing in 2015.
– Kaká (Orlando City SC): A former world-class player, his signing in 2015 was used to build up a brand-new club and their brand.

Sportmonks as an MLS data provider

Sportmonks is a sports data provider that offers a huge amount of real-time and historical data across many sports, with a strong focus on football. Our API provides data through REST APIs, widgets, odds, predictions, and other add-ons. Our Football API covers over 2,300 leagues and tournaments globally, including the MLS. It includes live scores, match events, line-ups, team and player statistics, fixtures, and historical data.

Key features for MLS

– Live match data: Get real-time updates on goals, cards, substitutions, kick-off, and match status. This is great for live score apps, match centres, and notifications.
– Team and player stats & fixtures: Get data on squads, historical and upcoming matches, player statistics, and appearances. This is useful for fan dashboards, fantasy leagues, and analysis.
– Standings & league tables: Get real-time league tables and details on tie-breakers. This is good for displaying standings on websites or mobile apps.
– MLS schedules & results: Get the full schedule, past and future, as well as match results and events. This is useful for calendars and archives.
– Winners / titles history: Get data about which teams won in which years (MLS Cup winners, etc.). This is great for historical stats and trivia.
– Odds & predictions: Get pre-match and live odds, as well as predictions from models. This is useful for betting platforms and match previews.

API structure & documentation

Our APIs are versioned. There is a current main version (Football API) and newer versions like API 3.0, which have extra endpoints and features. Authentication is done using API tokens, and responses are in JSON. There is also good documentation with tutorials and “how-to” guides. There is a free plan, which allows you to experiment with the service before committing to it.

Strengths & advantages

– Reliability & coverage: Sportmonks covers a large number of leagues and the MLS fully, offering historical data and live updates. This helps if your product needs both detailed statistics and a wide range of leagues.
– Speed & real-time updates: This is important for live applications. The delay in delivering match events is very low, which ensures minimal delay.
– Flexibility / customisation: You can choose which endpoints or data features you need and filter the data to avoid getting unnecessary information. Widgets, odds, and predictions can be added on if needed.
– Good developer experience: The documentation, tutorials, and examples, as well as Postman collections, are all well-structured. This makes it good for bringing new engineers on board.
– Affordable & scalable: There is a free trial with options to scale up. This helps both small applications and larger commercial ones.

Bring Major League Soccer closer with Sportmonks

Major League Soccer continues to expand its global profile with star signings, competitive balance, and growing fan engagement, and with Sportmonks you can follow it in full detail. Our Football API provides live scores, fixtures, player and team statistics, line-ups, league standings, match events, odds, and predictive insights, making it ideal for real-time coverage and long-term analysis. Whether you are building fan platforms, betting solutions, or analytical tools, Sportmonks delivers the speed, reliability, and depth you need. Start exploring the Sportmonks Football API today and bring MLS to life for your audience.