Ángel Mangual
... that Ángel Mangual's walk-off single in the 20th inning on July 9, 1971, ended the longest scoreless game in American League history?
... that <b id="mwBGA"><a href="./Ángel_Mangual" id="mwBGE" rel="mw:WikiLink" title="Ángel Mangual">Ángel Mangual</a></b><span about="#mwt57" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwBGI" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> <a class="mw-redirect" href="./Glossary_of_baseball_(W)#walk-off" id="mwBGM" rel="mw:WikiLink" title="Glossary of baseball (W)">walk-off</a> single in the 20th inning on July<span id="mwBGQ" typeof="mw:Entity"> </span>9, 1971, ended the longest scoreless game in <a href="./American_League" id="mwBGU" rel="mw:WikiLink" title="American League">American League</a> history?