Jeff Allen
... that defensive back Jeff Allen was traded twice during his career, but played for neither of the teams that traded for him?
... that <a href="./Defensive_back" id="mwBdQ" rel="mw:WikiLink" title="Defensive back">defensive back</a> <b id="mwBdU"><a class="mw-redirect mw-disambig" href="./Jeff_Allen_(gridiron_football)" id="mwBdY" rel="mw:WikiLink" title="Jeff Allen (gridiron football)">Jeff Allen</a></b> was traded twice during his career, but played for neither of the teams that traded for him?