This Monthly Report analyses the technical performance data collected by our partners OptaPro for the 2019 regular season of the Major League Soccer (MLS) of the United States and Canada. The study shows that the style of football played in the MLS differs from that of the five major European leagues in two principal aspects: the pressing on opponents and the aerial game.

This report turns its eye exclusively to Latin America. Based on the model of the annual study carried out since 2009 for 31 European leagues, it compares four top division Latin American championships from the point of view of the demographic characteristics of players: the Brazilian Serie A, the Argentinean Superliga, the Chilean Primera División and the Mexican Liga MX. The study covers 79 clubs and 2,015 footballers

The 50th Monthly Report of the CIES Football Observatory analyses the make-up of the 42 teams having always been present within the five major European leagues over the course of the decade 2010. Although money is more than ever a key factor, squad stability stemming from good strategic planning and the ability of clubs to get the best out of the talents trained in their youth academies remain crucial success criteria even in the today’s hyper-commercial and globalised environment

The 49th Monthly Report of the CIES Football Observatory analyses clubs from 31 European top divisions from the standpoint of the demographic characteristics of their players for the period from 2009 to 2019. Particularly noticeable between 2009 and 2018, the trend in the European labour market for footballers towards less stability and a greater international mobility has declined over the past year

The 48th Monthly Report of the CIES Football Observatory analyses the evolution of the number and characteristics of footballers having played on loan for teams of the five major European championships during the last decade. It notably shows that clubs from these leagues take more and more players on loan: from 2.62 per club and season between 2009 and 2014, to 3.09 between 2014 and 2019 (+18%). In 2018/2019, footballers on loan played a record number of minutes within the big-5: 11.5%.

Since its creation in 2005, the CIES Football Observatory has been monitoring the transfer of players through information published by clubs and the media. This Monthly Report analyses the sums paid in transfer indemnities by big-5 league teams, the clubs and championships who benefited from these investments, the net balance sheets for both teams and leagues, as well as inflation observed year by year since 2010.

This Report analyses the composition of teams participating in the five of the most developed women’s professional leagues worldwide: four European leagues (Germany, Sweden, France and England), as well as the National Women’s Soccer League in the United States. It reveals that the age of players increases, international mobility grows and the concentration of the best footballers within a limited number of clubs independently of their origin pursues its course.

This Monthly Report analyses the presence of expatriate footballers in 147 leagues from 98 national associations. Brazil is clearly at the top of the rankings for countries exporting footballers, ahead of France and Argentina. The most frequented migratory route originates from Brazil and ends in Portugal (261 players). England and Italy are the chief importing countries of footballers.

The 44th Monthly Report of the CIES Football Observatory analyses match attendances in 51 national football leagues from 42 countries. The first part focuses on 26 championships. It retraces the evolution in attendances over the last fifteen years. The second part compares the attendances recorded over the last five seasons for all of the 51 leagues included in the analysis.

This Monthly Report focuses on the top English football division: the Premier League. It analyses the evolution of the origin of players fielded over the past ten years. It shows that the percentage of players having grown up in England, the “nationals”, has progressively fallen to reach a new negative record level over the current season. The proportion of goals scored by Englishmen shows a similar trend.

This 42nd Monthly Report analyses the evolution of the competitive balance in the group stages of the Champions League since the introduction of the current format in 2003/04. The different indicators analysed illustrate a clear trend towards less balance and more predictability.

The 41st CIES Football Observatory Monthly Report analyses the link between ball possession and results in 35 championships from UEFA member associations using the data used generated by the specialist InStat company. Though the link between success and possession is undeniable, it is only from a certain level that ball control allows teams to improve significantly their results. This is probably the source of the erroneous but widespread idea that possession is not a key factor for success.