reserve teams
... that from 2010, reserve teams in Norwegian association football were barred from using more than three players aged over 21?
... that from 2010, <b id="mwDLc"><a class="mw-redirect" href="./Reserve_teams_in_Norwegian_football" id="mwDLg" rel="mw:WikiLink" title="Reserve teams in Norwegian football">reserve teams</a></b> in <a href="./Norway" id="mwDLk" rel="mw:WikiLink" title="Norway">Norwegian</a> <a href="./Association_football" id="mwDLo" rel="mw:WikiLink" title="Association football">association football</a> were barred from using more than three players aged over 21?