AUTHOR=Barreira Daniel , Casal Claudio A. , Losada José L. , Maneiro Rubén TITLE=Editorial: Observational Methodology in Sport: Performance Key Elements JOURNAL=Frontiers in Psychology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2020.596665 DOI=10.3389/fpsyg.2020.596665 ISSN=1664-1078