Sergio Gabriel Martinez
February 21, 1975
On December 27, 1997, in Ituzaingo, Argentina, he defeated Cristian Marcelo Vivas by disqualification in two rounds.
won the world title
On October 4, 2008, he defeated Alex Bunema by eight-round medical technical decision, in Temecula, California, to win the WBC middleweight title. On April 17, 2010, he unified his WBC title with WBO middleweight champion Kelly Pavlik and became a double champion by winning by unanimous decision. He regained the WBC middle belt by defeating Mexican Julio César Chávez Carrasco by unanimous decision.
Lost His Title
He was unknown for serving 14 months without defending the WBC middleweight title. In his second stage, he lost the WBC middle belt to Puerto Rican Miguel Cotto in his first defense, on June 7, 2014, losing a ten-round medical technical decision in New York.
June 14, 2015