Martinez

Biography

Sergio Gabriel Martínez (born 21 February 1975) is an Argentine professional boxer. He has held world championships in two weight classes, including the WBC super welterweight title from 2009 to 2010; and the unified WBC, WBO, Ring magazine and lineal middleweight titles between 2010 and 2014. With six successful defences of the Ring and lineal middleweight titles, Martínez's 50-month reign as champion ranks as one of the longest in the history of that weight class.