AUTHOR=Mota Gustavo R. , Santos Izabela Aparecida , Marocolo Moacir TITLE=Change in Soccer Substitutions Rule Due to COVID-19: Why Only Five Substitutions? JOURNAL=Frontiers in Sports and Active Living VOLUME=2 YEAR=2021 URL=https://www.frontiersin.org/journals/sports-and-active-living/articles/10.3389/fspor.2020.588369 DOI=10.3389/fspor.2020.588369 ISSN=2624-9367