Editing Michael Spinks (section)

===Holmes vs Spinks===
{{Main|Larry Holmes vs. Michael Spinks }}
In 1985, Spinks beat David Sears and Jim McDonald, both by knockout, in title defenses, before challenging [[Larry Holmes]] for the [[International Boxing Federation|IBF]] and lineal heavyweight championship.<ref>{{cite web|url=http://www.cyberboxingzone.com/boxing/achamp.htm |title=The Lineal Heavyweight Champions |publisher=The Cyber Boxing Zone Encyclopedia |url-status=dead |archive-url=https://web.archive.org/web/20090603092447/http://www.cyberboxingzone.com/boxing/achamp.htm |archive-date=2009-06-03 }}</ref> Holmes was trying to tie [[Rocky Marciano]]'s record of 49–0 as the heavyweight champion, but it was Spinks who made history that night, winning a controversial and narrow fifteen-round unanimous decision and becoming the first ever world light-heavyweight champion to win the world heavyweight title.  His controversial victory over Holmes was named [[Ring Magazine upsets of the year#1980s|''Ring Magazine'' Upset of the Year]]. With this, Michael and Leon had also become the first pair of brothers ever to be world heavyweight champions, followed two decades later by Wladimir and [[Vitali Klitschko]].