Major League Soccer (MLS) is the top league in the American professional soccer league. This event was born in 1996. After 20 years of development, there are now 20 teams, divided into two divisions: East and West. The competition system of American professional leagues is different from that of the five major leagues in Europe. The main difference is that there is no promotion and demotion system. Play the playoffs and decide the champion. The two teams not only have two home and away games each season, but also are divided according to the division. In addition, in the playoffs, it used to be decided by shooting at each other alone, rather than the penalty shootout that is common in other cups. After development, AFL has become an event that can attract big-name stars from Europe and South America. Famous European players, such as Gerrard, Lampard, Nesta, Villa, robbie keane, Cahill, Henry, Beckham and Kaka, all chose to play in Major League Soccer in the later stage of their careers. Therefore, the major leagues are often called "the place for the elderly". Clubs of AFL in 20 15 include: Chicago Flame Football Club Bridgeville in Eastern Division and 1998 Columbus Crew Football Club in Toyota Park, Illinois. Mapfrey Stadium, Ohio 1996 Washington DC United Football Club Robert Kennedy Stadium 1996 Montreal Impact Football Club Montreal Sapto Stadium, Quebec 20 12 New England Revolutionary Football Club Gillette Stadium, Foxburg, Massachusetts 1 996 new york City Football Club new york Yankee Stadium 20 15 New York Red Bull Football Club New Jersey Red Bull Arena Harrison 1998 Pennsylvania 20 10 Toronto Football Club Toronto Ontario BMO Stadium 2007 Colorado Rapids Football Club Comes City, Colorado Dick Sporting Goods Stadium/ Kloc-0/996 Dallas Football Club frisco, Toyota Stadium 1996 Dinamo Football Club BBVA Compass Stadium in Houston, Texas 2006 Los Angeles Galaxy Football Club Carlson City, California Box Office Center 1996 Portland Lumberjack Football Club Providence Park Stadium in Portland, Oregon 20/ Kloc-0/66 Tinto River Stadium, Utah 2005 San Jose Earthquake Football Club, Abaya Stadium, San Jose, California 1996 Seattle Bay People Football Club Seattle Centennial Link Stadium, Washington 2009 Kansas City Athletic Football Club Kansas City Athletic Park Stadium 1996 Vancouver White Hat Football Club Vancouver Square Stadium, British Columbia 201Dissolved team: The National Football Super League (NPSL) is the fourth largest league in the United States and belongs to the semi-professional category. The league is divided into four divisions: North Atlantic Division, Cornerstone Division and Mid-Atlantic Division; The Midwest Division is divided into the Great Lakes East Division, the Great Lakes West Division and the Central Division. The South Division has jurisdiction over the Southeast Group, the South Atlantic Group, the South Central Group (also divided into north and south areas) and the Sunshine Group; The Western Division has jurisdiction over Northwest Group, Jinmen Group and Southwest Group. This season's rust belt derby is considered to be the most striking derby in semi-professional league. A total of 78 teams participated in the 20 14 season: Division Club, North Atlantic Division of Northeast Division and Italian Football Club of Brooklyn.

Greater Lowell Football Club

New york Athletic Football Club,

Rhode Island Red Football Club

Coast United Seafarers Football Club

Coast Phantom Football Club Cornerstone Group Baxter Monte Torture Football Club

Claxton Eagle Football Club

Electric Power City Surprise Football Club

Lihaigu union

Grand Bin Hamton Football Club

Hulcher Football Club

Xiaoguxing football club

Pocono Si Nuo Football Club Mid-Atlantic ASA Toll Football Club

Chesterfield United Football Club

Washington, D.C. United Youth Team

76 Heritage Team

Fredericks Fort Football Club

Virginia Beach City Football Club South Atlantic Group Carolina Eagle Football Club U-23 Team

Carolina discoverer football club

Gatecheng Football Club

Milt Beach Football Club

Ranshengxing Football Club Sunshine Group Cape Carroll Hurricane Football Club

Jacksonville United

Miami United

Storm football club

Tampa Predator Football Club Southeast Group Atlanta Silver Back Reserve

Chattanooga Football Club

Georgia Revolutionary Football Club

Knox Wilford Football Club

Nashville football club

Johnson Football Club of New Orleans

Ben Sacola City Football Club

Rocket City United with Zhongnan Group North Zone:

Joplin Locomotive Football Club

Liverpool samurai football club

Oklahoma City Football Club

Tulsa Athletic Football Club South Zone:

BCS conflict football club

San Antonio Corinti Football Club

Dallas City Football Club

Fort Worth Shepherd Football Club Great Lakes East Group AFC Cleveland, Midwest Division

Brigadier General Yili Football Club

Buffalo Football Club

Pittsburgh Legion Football Club Great Lakes Western Group Cincinnati Saints Football Club

Detroit City Football Club

Indiana flame

Lansing United ltd

Michigan star football club central group Auclair Aris football club

St Louis Bordeaux Football Club

Madison 56 ers football club

Minnesota Double Star Football Club

Minnesota Joint Reserve Board

Sifang chengying football club

Delray City Football Club, Southwest Division of Bavarian Football Club in Milwaukee

Fowles Football Club

Heisentel football club

Santa Clara Tower Football Club

San Diego lightning football club

Temekula Football Club Jinmen Group CD Akiloko Football Club

Royal San Jose Football Club

Sacramento gold team

San Francisco tramp football club

Sonomasol Football Club Northwest Group Canyon Football Club

International United Football Club

Seattle Athletic Football Club

Super Development League (PDL), the joint football league of Spartan Football Club, is an associated event of USL professional league and belongs to semi-professional league. The event, like NPSL, is the fourth-level event in the United States. PDL and NPSL are parallel events. PDL players have rich background and experience. Among them, there are residents where the team is located, as well as outsiders, all of whom have engaged in various jobs. According to the regulations, each team should have 26 players in the first team. The players of the team are mainly American players under the age of 23, but each team can have 10 foreign aid and 8 over-age players. PDL is divided into four districts: East District, West District, South District and Central District. Under the east division, it is divided into three groups: the middle Atlantic, the northeast and the south Atlantic. Under the western division, it is divided into three groups: northwest, southwest and rocky mountain. Under the South Division, it is divided into two groups: Central South and Southeast. In China District, it is divided into two groups: Great Lakes and hartland.

In 20 15, the teams participating in this competition are: Baltimore Bohemian Football Club in Baltimore, East District where the club is located; Risburg, U-23 team in Washington, D.C.; Bonvinia Football Stadium in Maryland; Evergreen Sports Center in new york, Virginia, European competitive football club; Newark, New Jersey Fast Football Club in Barker Stadium, new york. Rupert Golden Stadium in New Jersey Lihai Valley Lianyinbo Football Club Bethlehem Whitehall High School Long Island Rangers Football Club South Huntington, new york St. Anthony High School New York Red Bull U-23 Team Hanover, New Jersey new york Heavy Cattle Stadium Ocean City Northeast People's Football Club Ocean City, New Jersey Kerry Stadium AC Reading United Football Club Reading, Pennsylvania Don Thomas Stadium Westchester Flame New Rochelle, New york City Park Stadium Northeast Group AC Connecticut Football Club Danbury, Connecticut Westside Athletic Stadium GPS Portland Phoenix Portland, Royal Boston Goat Football Club Wilmouth, Maine Memorial Stadium, Portsmouth, Massachusetts Wilmouth High School Coast United Phantom Team, Lourde, Portsmouth High School West Massachusetts Pioneer, Dinamo Football Club Greensburg, Carolina, Lusitano Stadium, Massachusetts; Charlotte Eagle Football Club, Mark Filson Stadium, North Carolina; Cincinnati Dutch Lions Football Club, Dixon Stadium, North Carolina; Greenwood, Xavier University, Ohio; King's Guard Football Club, Southwest Virginia, Radel Football Center, South Carolina; East River Football Center, West Virginia Chaos Football Club, Charleston, Shenandoah, Dutch Lions Football Club in Houston, South Group of the South Division of Huenbam Stadium in West Virginia, laredo, laredo Heat Football Club in the First Bank Stadium in Texas, Jackson, Mississippi Brilla Football Club of Texas A&M University, Midland Odessa Team in Harper Davis Stadium in Mississippi, bradenton, bradenton IMG Youth Team in Southeast Group of Texas Grand Exchange Stadium, and IMG Youth Training Stadium in Florida, Florida Florida Florida Football Club Fort Lauderdale, Florida Central Braud Park Stadium, Miami City Champion Football Club Miami, Okala of Florida International University Okala Stamp Football Club, Mary Lake of U-23 team in Orlando, Trinity Catholic Celtic Stadium in Florida, Sun Football Club Palm Beach at Shawalt Stadium in Florida, Fort Myers, Clay Lewis Stadium in Florida, Adrenaline Football Club in Southwest Florida, West Carrollton, Dutch Lions Football Club in Dayton, Great Lakes Group, Louisville, Derby City Ranger, Doek Stadium, Ohio, London Football Club in Forest City, Warhol Stadium, Kentucky, K-W, German Canadian Club Stadium in Ontario, Waterloo, University of Waterloo, and Pontiac, Michigan Bucks, Ontario, Michigan ultimate football field Pittsburgh Hound River U-23 Pittsburgh, Pennsylvania Seahorse Toronto FC Youth Team Toronto, Ontario Gia Training Ground hartland Group Chicago Flame U-23 Chicago, Illinois Honda Park Stadium Des Moines Threatened Football Club, Springfield, Iowa Valley Stadium, Springfield, Missouri Cooper Sports Center, St. Louis Lions, St. Louis, Missouri Tony Glavin Football Stadium, Thunder Bay Frozen Football Club Thunder Bay, Ontario Chambers Park WSA Winnipeg Football Club, John Crass Stadium West Division Northwest Group, Manitoba Calgary Mountain Football Club Calgary, Gerald Stadium, Alberta Nappuma Football Club Bremerton, Washington G Stadium Lane United Football Club Eugene, Portland Wood U-23 Team Portland, Oregon, Providence Park, Oregon, Bugert Bay Gunners Football Club Avilet, Washington Goddard Memorial Stadium, Seattle Bay People's U-23 Team Pierce County, Washington TBA Washington Firefighting Football Club Redmond, Washington Redmond High School Rocky Mountain Group Albuquerque Sol Football Club, Provo, Brigham Young University Puma, Utah River Stadium, Tucson Football Club, Arizona Keno Veterans Memorial Stadium, Las Vegas Mob Football Club, Nevada Peter John Memorial Stadium, Royal Colorado Fox Heights, Balingen, Southwest Group of Colorado West Asia Stadium, Fresno Flame Football Club, California Balingen High School, Fresno, Golden State Missionary Football Club, Los Angeles, California State University, San Bernardino, Orange County Blues U-23, Costa Mesa, Ramireda, California Pioneer University Southern California Hippocampus Football Club, Ventura, California Biaola University Ventura.