The number of teams in Serie A is 20. Serie A, Italy's premier division of football, has 20 teams. Unlike in other European football divisions, several of the largest teams share stadiums (AC Milan and Inter Milan, Roma and Lazio, and Genoa and Sampdoria), resulting in just 17 "Serie A" venues. The English Football League also has 20 teams, but they do not share facilities. Each team has its own stadium or venue.
There are a number of reasons why these larger teams play in the same stadiums as each other. The first is economic: having one large facility means that they can charge more for tickets and sponsorships. The second reason is that by having all these major clubs playing in the same city, there is more interest in their games. And the last reason is that if one of them were to get relegated, it would cause too much disruption to the season for everyone else.
Each club in Serie A is allowed only one player on the field who is born outside of Italy. There are exceptions to this rule, such as when players from countries that do not have professional leagues are included in Serie A squads. For example, Brazilians can be included in an Italian club's roster if they have been given work permits for purposes such as training with the team or being listed on the bench during matches.
In addition to the one foreign player quota, each club is also limited to four non-EU nationals in its squad.
If you look at the rosters of all 20 Serie A teams, you'll notice that 307 out of 551 players (55.7 percent) are not Italian nationals. Foreigners make up half of the rosters on 11 of the league's 20 teams. Five of the teams are composed of more than 70% foreign nationals. That's more than any other professional sports league in Italy.
The most popular countries of origin for Serie A players are Brazil and Argentina with more than 100 players each. After them come Mexico, Colombia, United States, Germany, and Portugal. There are also a number of British, French, Spanish, and Jordanian players in the league.
In addition to these nationalities playing together in the same league, there are also several instances where an American has played in Serie A. The first was in 1995 when Edgar Davila was hired by Parma to be their manager. He had great success at the club, finishing as the runner-up in the league twice, before leaving after one season to take charge of Colombian side Millonarios. Within a year, he was replaced by another foreign coach in Giovanni Trapattoni who took charge of Roma. In 1999, America went back to Europe when Guido Carlesi was hired by U.S. team New York/Jersey Knights. He stayed for only one season before being replaced by Ricardo La Volpe who is now the head coach of Juventus. These are the only two Americans to play in the top flight of Italian football.
Serie A is the top category of Italian football, administered by the Lega Nazionale Professionisti Serie A and comprised of 20 teams. The Lega Nazionale Professionisti Serie B organizes the second tier, Serie B. Both of these leagues encompass the whole country of Italy. There are several differences between these two leagues that will be discussed here.
The club from Rome, Roma, is the only team to have won both championships. As for the other 19 teams, they all come from larger cities or towns across Italy. Eight of those have always been part of the top flight since its creation in 1928: AC Milan, AS Roma, Calcio Padova, FC Venice, Juventus, Lazio, Napoli, and Palermo. The other 11 teams have only been allowed to play in the first division during certain periods of time. These include nine occasions when this league was divided into two groups, like it is now, but also once when it had four groups and another time when it had five groups. The last team to be promoted is at the end of each season. They all compete in a double round-robin format with every team playing each other home and away. The team with the most points at the end of the season is declared champion.
There are several factors that can allow a team from outside the big cities to join the elite group.