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Fifteen male players (under 15 yrs, mean age 13.2\u2009\u00b1\u20091.03\u2009years, mean years of practice: 4.2\u2009\u00b1\u20091.10\u2009years) from the same club participated in this study. For analysis purposes, on advice from the coaching staff, participants were categorised according to their main team performance role, resulting in sub-samples of 5 defenders (centre-backs\u2009=\u20092 and full- backs\u2009=\u20093), 7 midfielders (central midfielders\u2009=\u20093 and wide midfielders\u2009=\u20094) and 3 attackers (forwards). In order to assess participant tactical behaviours, a notational analysis system was created with four categories: i) team behaviours, ii) individual players\u2019 offensive actions, iii) individual players\u2019 defensive actions, and iv), ball possession effectiveness. Analysis of players\u2019 offensive actions revealed that the team composed only of midfielders revealed a higher frequency of diagonal and vertical passes in relation to the attackers\u2019 team. In offensive individual actions, the attackers\u2019 team revealed more dribbles in relation to the teams of defenders and midfielders. Analysis of ball possession effectiveness revealed that the team of defenders achieved higher values of shots on goal compared to the team of midfielders. These findings exemplified how playing role constrains the emergence of different collective behaviours and individual actions in 3 vs 3 SSCGs.<\/jats:p>","DOI":"10.1177\/17479541211030076","type":"journal-article","created":{"date-parts":[[2021,7,7]],"date-time":"2021-07-07T02:51:01Z","timestamp":1625626261000},"page":"346-354","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":15,"title":["How football team composition constrains emergent individual and collective tactical behaviours: Effects of player roles in creating different landscapes for shared affordances in small-sided and conditioned games"],"prefix":"10.1177","volume":"17","author":[{"given":"Timo","family":"Laakso","sequence":"first","affiliation":[{"name":"Department of Sport Sciences, University of Jyv\u00e4skyl\u00e4, Jyv\u00e4skyl\u00e4, Finland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1398-6123","authenticated-orcid":false,"given":"Keith","family":"Davids","sequence":"additional","affiliation":[{"name":"Sport & Human Performance Research Group, Sheffield Hallam University, Sheffield Hallam University, Sheffield, UK"}]},{"given":"Pekka","family":"Luhtanen","sequence":"additional","affiliation":[{"name":"Football Association of Finland, Helsinki, Finland"}]},{"given":"Jarmo","family":"Liukkonen","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Jyv\u00e4skyl\u00e4, Jyv\u00e4skyl\u00e4, Finland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2165-2687","authenticated-orcid":false,"given":"Bruno","family":"Travassos","sequence":"additional","affiliation":[{"name":"CreativeLab, Research Center for Sports Sciences, Health Sciences and Human Development (CIDESD), Universidade da Beira Interior, Covilh\u00e3, Portugal"},{"name":"Portugal Football School, Portuguese Football Federation, Oeiras, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2021,7,6]]},"reference":[{"key":"bibr1-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1080\/02640414.2012.712716"},{"key":"bibr2-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1080\/24733938.2018.1431399"},{"key":"bibr3-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1080\/1750984X.2017.1349826"},{"key":"bibr4-17479541211030076","volume-title":"The ecological approach to visual perception","author":"Gibson JJ.","year":"1979"},{"key":"bibr5-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-013-0070-9"},{"key":"bibr6-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0000000000001700"},{"key":"bibr7-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1016\/j.humov.2017.06.008"},{"key":"bibr8-17479541211030076","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2020.553813"},{"key":"bibr9-17479541211030076","first-page":"537","volume-title":"Science and football V: the proceedings of the fifth world congress on sports science and football","author":"Davids K","year":"2005"},{"key":"bibr10-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1080\/17461391.2012.725103"},{"key":"bibr11-17479541211030076","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2018.02520"},{"key":"bibr12-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-012-0001-1"},{"key":"bibr13-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1007\/BF03262285"},{"key":"bibr14-17479541211030076","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2020.562995"},{"key":"bibr15-17479541211030076","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2019.01407"},{"key":"bibr16-17479541211030076","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0000000000002445"},{"key":"bibr17-17479541211030076","unstructured":"Hughes M, Probert G. 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