11 NBA championships
... that Boston Celtics center Bill Russell won 11 NBA championships during his 13-year playing career, including two titles as player-coach?
... that <a href="./Boston_Celtics" id="mwCfc" rel="mw:WikiLink" title="Boston Celtics">Boston Celtics</a> center <a href="./Bill_Russell" id="mwCfg" rel="mw:WikiLink" title="Bill Russell">Bill Russell</a> won <b id="mwCfk"><a href="./List_of_NBA_players_with_most_championships" id="mwCfo" rel="mw:WikiLink" title="List of NBA players with most championships">11 NBA championships</a></b> during his 13-year playing career, including two titles as <a class="mw-redirect" href="./List_of_National_Basketball_Association_player-coaches" id="mwCfs" rel="mw:WikiLink" title="List of National Basketball Association player-coaches">player-coach</a>?