Ralph Siewert
... that Ralph Siewert was the first seven-footer to play professional basketball?
... that <b id="mwA0Y"><a href="./Ralph_Siewert" id="mwA0c" rel="mw:WikiLink" title="Ralph Siewert">Ralph Siewert</a></b> was the first seven-footer to play professional <a href="./Basketball" id="mwA0g" rel="mw:WikiLink" title="Basketball">basketball</a>?