• Baseball
  1. Major League Baseball
  2. Major League Baseball
  3. American League
  4. National League
  5. Federal League
  6. Negro National League
  7. Minor League Baseball
  8. International League
  9. Pacific Coast League
  10. Eastern League
  11. Southern League
  12. Texas League
  13. California League
  14. Carolina League
  15. Florida State League
  16. Midwest League
  17. South Atlantic League
  18. New York-Penn League
  19. Northwest League
  20. Appalachian League
  21. American Association (1969-97)
  22. Liga Mexicana de Béisbol
  23. Minor League Baseball

  1. Independent Baseball
  2. Canadian Baseball League
  3. Senior Pro Baseball Association
  4. Intercounty Baseball League
  5. Northern League
  6. Can-Am League
  7. National Pro Fastpitch
  8. United Shore Professional Baseball League

  1. International Baseball
  2. World Baseball Classic
  3. Australian Baseball League
  4. Asian Baseball
  5. Nippon Professional Baseball
  6. KBO League (Korean Baseball)
  7. Collegiate Baseball
  8. West Coast League
  9. Futures Collegiate Baseball League
  10. Coastal Plain League
  11. Cape Cod Baseball League
  12. New England Collegiate Baseball League
  13. Northwoods League

  1. MLB Partner League
  2. Pioneer League
  3. Frontier League
  4. Atlantic League
  5. American Association of Professional Baseball
• Hockey
  1. Professional Ice Hockey
  2. National Hockey League
  3. World Hockey Association
  4. National Hockey Association
  5. Kontinental Hockey League
  6. Pacific Coast Hockey Association
  7. Western Canada Hockey League
  8. Premier Hockey Federation

  1. Roller Hockey
  2. Roller Hockey International
  3. Minor-Pro Hockey
  4. American Hockey League
  5. WHA 2005
  6. ECHL
  7. International Hockey League
  8. National Women's Hockey League (2000)
  9. Ligue Nord-Américaine de Hockey
  10. Central Hockey League
  11. Southern Pro Hockey League
  12. Federal Hockey League
  13. International Hockey League (2008)
  14. United Hockey League
  15. Western Pro Hockey League
  16. Canadian Womens Hockey League
  17. Mid-Atlantic Hockey League
  18. All American Hockey League
  19. West Coast Hockey League
  20. Western Hockey League (1952-74)
  21. Atlantic Coast Hockey League
  22. World Hockey Association 2

  1. Canadian Major Junior Hockey
  2. Ontario Hockey League
  3. Quebec Major Jr Hockey League
  4. Western Hockey League
  5. Canadian Hockey League
  6. European Hockey
  7. Swedish Hockey League
  8. Deutsche Eishockey Liga
  9. Liiga
  10. National League A (Switzerland)
  11. Extraliga ledního hokeje, ELH (Czech Extraliga)
  12. Elite Ice Hockey League (UK)
  13. Slovak Extraliga
  14. Russian Major League (Vysshaya hokkeinaya liga - V
  15. Austrian Hockey League
  16. Minor Hockey League (Russia)
  17. Mestis (Finland)
  18. Alps Hockey League

  1. International Hockey
  2. International Ice Hockey Federation
  3. U.S. Junior Hockey
  4. United States Hockey League
  5. North American Hockey League
  6. Canadian Junior A Hockey
  7. British Columbia Hockey League
  8. Alberta Junior Hockey League
  9. Saskatchewan Jr Hockey League
  10. Ontario Junior Hockey League
  11. Central Canada Hockey League
  12. Northern Ontario Jr Hockey League
  13. Manitoba Junior Hockey League
  14. Canadian Junior Hockey League
  15. Maritime Junior A Hockey League
  16. Superior International Junior Hockey League
  17. Greater Metro Junior A Hockey League
• Soccer
  1. International Football
  2. Asian Football Confederation
  3. Confédération Africaine de Football
  4. CONCACAF
  5. CONMEBOL
  6. Oceania Football Confederation
  7. UEFA
  8. FIFA World Cup
  9. FIFA
  10. FIFA Women's World Cup

  1. Indoor Soccer
  2. Major Indoor Soccer League
  3. European Football
  4. Italian Serie A
  5. French Ligue 1
  6. Spanish La Liga
  7. European Club Teams
  8. German Bundesliga
  9. Allsvenskan (All-Swedish)
  10. Russian Premier League
  11. Ukrainian Premier League
  12. Prva Hrvatska Nogometna Liga (Croatia)
  13. Gambrinus Liga (Czech Republic)
  14. Scottish Premier League (SPL)
  15. Danish Superliga
  16. Veikkausliiga (Finland)
  17. Latvian Higher League (Virslīga)
  18. Portuguese Primeira Liga
  19. Dutch Eredivise

  1. North American Soccer
  2. Major League Soccer
  3. North American Soccer League
  4. NASL 2011
  5. A-League
  6. USL
  7. Premier Development League
  8. USSF Div 2 Pro League
  9. Canadian Soccer League
  10. Mexican Primera División
  11. USL First Division
  12. National Premier Soccer League
  13. National Womens Soccer League
  14. American Soccer League
  15. Premier League of America
  16. Canadian Premier League

  1. South American Football
  2. South American Clubs
  3. Campeonato Brasileiro Série A
  4. Asian/Australian Soccer
  5. Australian A-League
  6. ASB Premiership (New Zealand)
  7. K-League (South Korea)
  8. Chinese Super League
• College
  1. American Colleges - NCAA
  2. NCAA Division I (a-c)
  3. NCAA Division I (d-h)
  4. NCAA Division I (i-m)
  5. NCAA Division I (n-r)
  6. NCAA Division I (s-t)
  7. NCAA Division I (u-z)
  8. NCAA Bowl Games
  9. National Collegiate Athletic Assoc
  10. NCAA Conferences
  11. NCAA Hockey Conferences
  12. NCAA Division II Conferences
  13. NCAA Division III Conferences

  1. Canadian Universities - CIS
  2. Atlantic University Sport
  3. Canada West Universities
  4. Ontario University Athletics
  5. Federation Québecoise du Sport
  6. Canadian Interuniversity Sport
  7. Réseau du sport étudiant du Québec
• Football
  1. American Football
  2. National Football League
  3. NFL Europe
  4. United States Football League
  5. World Football League
  6. XFL
  7. National Womens Football Association
  8. United Football League (2009)
  9. American Football League
  10. WLAF
  11. Elite Football League of India
  12. Fall Experimental Football League
  13. Alliance of American Football
  14. United Football League

  1. Canadian Football
  2. Canadian Football League
  3. Arena/Indoor Football
  4. Arena Football League
  5. Arena Football 2
  6. Indoor Football League
  7. Professional Indoor Football League
  8. Ultimate Indoor Football League
  9. X-League Indoor Football
  10. National Arena League
• Basketball
  1. Professional Basketball
  2. National Basketball Association
  3. Women's National Basketball Association
  4. American Basketball Association
  5. NBL Canada
  6. NBL Australia
  7. International Basketball League
  8. BIG3
  9. Chinese Basketball Association

  1. Minor League Basketball
  2. NBA Gatorade League
  3. American Basketball Association (2000)
  4. International Basketball
  5. Federation Internationale de Basket-ball
• Other Sports
  1. Lacrosse
  2. National Lacrosse League
  3. Major League Lacrosse
  4. Continental Indoor Lacrosse League
  5. Canadian Lacrosse League
  6. Professional Lacrosse League
  7. Premier Lacrosse League
  8. Multi-Sport Competitions
  9. Summer Olympics
  10. Winter Olympics
  11. Summer Paralympics
  12. Winter Paralympics
  13. The Olympic Games

  1. Rugby
  2. engage Rugby Super League
  3. National Rugby League
  4. Pro12
  5. Aviva Premiership Rugby
  6. Super Rugby
  7. Tennis
  8. World TeamTennis
  9. Auto Racing
  10. NASCAR
  11. IndyCar Series
  12. NASCAR Sprint Cup
  13. NASCAR Xfinity Series
  14. NASCAR Camping World Truck
  15. INDYCAR

  1. Golf
  2. Professional Golfers' Association of America
• Resources
  1. Daily MLB Uniform Tracker
  2. Daily NHL Uniform Tracker

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  6. Hockey News
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1921 American League Logos