Editing Tony Canzoneri (section)

===Three-division world champion===
Canzoneri's first defense was a unification of sorts: He faced World [[Light Welterweight]] champion [[Jack Kid Berg]], who was putting his title on the line and trying to take Canzoneri's lightweight crown. Canzoneri became a three-division world champion by knocking Berg out in the third round on April 24, 1931.<ref>{{cite web|url=http://www.cyberboxingzone.com/boxing/jrwelt.htm|title=Tony Canzoneri - Lineal Junior Welterweight Champion|publisher=The Cyber Boxing Zone Encyclopedia}}</ref> Canzoneri, [[Barney Ross]] and [[Henry Armstrong]] were the only boxing champions in history allowed to hold two or more world titles simultaneously. ([[Sugar Ray Leonard]] became both the vacant World [[Super Middleweight]] and the World [[Light Heavyweight]] Champion in one night in 1988, but he could keep only one and chose to keep the Super Middleweight title.)