Bill Sargent
... that, to avoid a league rule that banned participation, American football coach Bill Sargent agreed to release (and later re-sign) his players before an all-star game organized by boxer Joe Louis?
... that, to avoid a <a href="./Pacific_Coast_Professional_Football_League" id="mwBw8" rel="mw:WikiLink" title="Pacific Coast Professional Football League">league</a> rule that banned participation, <a href="./American_football" id="mwBxA" rel="mw:WikiLink" title="American football">American football</a> coach <b id="mwBxE"><a href="./Bill_Sargent" id="mwBxI" rel="mw:WikiLink" title="Bill Sargent">Bill Sargent</a></b> agreed to release (and later re-sign) his players before an <a href="./All-star_game" id="mwBxM" rel="mw:WikiLink" title="All-star game">all-star game</a> organized by boxer <a href="./Joe_Louis" id="mwBxQ" rel="mw:WikiLink" title="Joe Louis">Joe Louis</a>?