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10 SERGIO MARTINEZ GREATEST KNOCKOUTS Please support my channel. It can buy me another cup of coffee :) Sergio Gabriel Martínez (born 21 February 1975) is an Argentine professional boxer. He held the WBC interim 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 defenses 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 also held the IBO super welterweight title from 2003 to 2004. In 2010 he was granted the Konex Award Merit Diploma as one of the five best boxers of the last decade in Argentina. In 2011, Martínez reached a career high ranking as the world's third best active boxer, pound for pound, behind Floyd Mayweather Jr. and Manny Pacquiao, as voted by most sporting news and boxing publications, including Sports Illustrated, ESPN, Yahoo! Sports, and The Ring. In 2010 he received Fighter of the Year
