27 centuries
... that identified as "the outstanding Australian batsman of his generation", Greg Chappell scored 27 centuries in Test and One Day International cricket matches?
... that identified as "the outstanding <a href="./Australia_national_cricket_team" id="mwBr0" rel="mw:WikiLink" title="Australia national cricket team">Australian</a> <a href="./Batting_(cricket)" id="mwBr4" rel="mw:WikiLink" title="Batting (cricket)">batsman</a> of his generation", <a href="./Greg_Chappell" id="mwBr8" rel="mw:WikiLink" title="Greg Chappell">Greg Chappell</a> scored <b id="mwBsA"><a href="./List_of_international_cricket_centuries_by_Greg_Chappell" id="mwBsE" rel="mw:WikiLink" title="List of international cricket centuries by Greg Chappell">27 centuries</a></b> in <a href="./Test_cricket" id="mwBsI" rel="mw:WikiLink" title="Test cricket">Test</a> and <a href="./One_Day_International" id="mwBsM" rel="mw:WikiLink" title="One Day International">One Day International</a> <a href="./Cricket" id="mwBsQ" rel="mw:WikiLink" title="Cricket">cricket</a> matches?