1926 FA Cup Final
... that after the 1926 FA Cup Final, Manchester City F.C. became the first team to reach the final and suffer relegation in the same season?
... that after the <b id="mwC3o"><a class="mw-redirect" href="./1926_FA_Cup_Final" id="mwC3s" rel="mw:WikiLink" title="1926 FA Cup Final">1926 FA Cup Final</a></b>, <a href="./Manchester_City_F.C." id="mwC3w" rel="mw:WikiLink" title="Manchester City F.C.">Manchester City F.C.</a> became the first team to reach the final and suffer <a href="./Promotion_and_relegation" id="mwC30" rel="mw:WikiLink" title="Promotion and relegation">relegation</a> in the same season?