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Three thousand five hundred retired Portuguese football players born between 1950 and 1989, and registered on Portuguese Football Federation were considered in this study. Descriptive analysis and a multivariable binary logistic regression model were performed to assess the relationship between the mastery stage development variables and the competitive level of retirement of football players. The results highlighted that the KCI first senior registration level, number of seasons in mastery stage, number of total games as senior player, number of total games in retirement season, and the age of the last best result achieved contribute to explain and predict the competitive level of retirement of Portuguese football players. The tendencies identified and their impact on the competitive level of retirement could be important implications on awareness and definition of management and support programs of players\u2019 careers.<\/jats:p>","DOI":"10.1177\/1747954120923198","type":"journal-article","created":{"date-parts":[[2020,5,5]],"date-time":"2020-05-05T23:00:12Z","timestamp":1588719612000},"page":"533-541","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["Identification of key career indicators in Portuguese football players"],"prefix":"10.1177","volume":"15","author":[{"given":"Ricardo","family":"Monteiro","sequence":"first","affiliation":[{"name":"Department of Sport Sciences, Universidade da Beira Interior, Covilh\u00e3, Portugal"}]},{"given":"Diogo","family":"Monteiro","sequence":"additional","affiliation":[{"name":"Escola Superior de Desporto de Rio Maior (ESDRM-IPSantar\u00e9m), Rio Maior, Portugal"},{"name":"CIDESD, Centro de Investiga\u00e7\u00e3o em Desporto, Sa\u00fade e Desenvolvimento Humano, Vila-Real, Portugal"}]},{"given":"C\u00e9lia","family":"Nunes","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Center of Mathematics and Applications, Universidade da Beira Interior, Covilh\u00e3, Portugal"}]},{"given":"Miquel","family":"Torregrossa","sequence":"additional","affiliation":[{"name":"Departamento de Psicolog\u00eda B\u00e1sica, Evolutiva y de la Educaci\u00f3n, Universitat Aut\u00f3noma de Barcelona, Barcelona, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2165-2687","authenticated-orcid":false,"given":"Bruno","family":"Travassos","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, Universidade da Beira Interior, Covilh\u00e3, Portugal"},{"name":"CIDESD, Centro de Investiga\u00e7\u00e3o em Desporto, Sa\u00fade e Desenvolvimento Humano, Vila-Real, Portugal"},{"name":"Portugal Football School, Portuguese Football Association, FPF, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2020,5,5]]},"reference":[{"key":"bibr1-1747954120923198","doi-asserted-by":"publisher","DOI":"10.1080\/1612197X.2009.9671916"},{"key":"bibr2-1747954120923198","doi-asserted-by":"publisher","DOI":"10.1080\/10413200.2015.1128992"},{"key":"bibr3-1747954120923198","doi-asserted-by":"publisher","DOI":"10.1080\/1750984X.2012.687053"},{"key":"bibr4-1747954120923198","doi-asserted-by":"publisher","DOI":"10.1080\/1612197X.2018.1486872"},{"key":"bibr5-1747954120923198","first-page":"61","volume":"14","author":"Carapinheira A","year":"2019","journal-title":"Revista Iberoamericana de Psicolog\u00eda del Ejercicio y el Deporte"},{"key":"bibr6-1747954120923198","unstructured":"Bailey M. 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