Highlights of Juan Diaz's career

June 13, 2011 12:00 AM

Photo: Johnny Hanson/Chronicle

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Juan Diaz represented Houston well during a 10-year career, becoming a world champion and defending his titles with heart, class and style. The 'Baby Bull' officially announced his retirement from boxing on June 13, 2011. less

Juan Diaz represented Houston well during a 10-year career, becoming a world champion and defending his titles with heart, class and style. The 'Baby Bull' officially announced his retirement from boxing on ... more

July 31, 2010: In what would be his final fight, Diaz, left, loses a 12-round unanimous decision to Mexican legend and WBA/WBO lightweight champion Juan Manuel Marquez at the Mandalay Bay Events Center in Las Vegas. less

July 31, 2010: In what would be his final fight, Diaz, left, loses a 12-round unanimous decision to Mexican legend and WBA/WBO lightweight champion Juan Manuel Marquez at the Mandalay Bay Events Center in Las ... more

Photo: Ethan Miller, Getty Images

July 31, 2010: In what would be his final fight, Diaz, left,... Photo-1178081.16405 - Houston Chronicle

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July 15, 2010: Juan Diaz signs a boxing glove for Nathan Salgado, 4, at the Edwards Cinema and IMAX in the Marq*E Entertainment Center in Houston as part of the promotion for his rematch against Marquez.

July 15, 2010: Juan Diaz signs a boxing glove for Nathan Salgado, 4, at the Edwards Cinema and IMAX in the Marq*E Entertainment Center in Houston as part of the promotion for his rematch against Marquez.

Aug. 22, 2009: Juan Diaz, right, improved to 35-2 with 17 KO after a unanimous decision over Paulie Malignaggi, of Brooklyn, New York. Diaz won the NABO junior welterweight title in the hard-fought bout at Toyota Center. less

Aug. 22, 2009: Juan Diaz, right, improved to 35-2 with 17 KO after a unanimous decision over Paulie Malignaggi, of Brooklyn, New York. Diaz won the NABO junior welterweight title in the hard-fought bout at ... more

Aug. 14, 2009: Houston's Juan Diaz (34-2, 17 KO), a former three-time world champion, works out as he makes final preparations at Savannah Boxing Club for his fight against brash New Yorker Paulie Malignaggi on Saturday at Toyota Center. less

Aug. 14, 2009: Houston's Juan Diaz (34-2, 17 KO), a former three-time world champion, works out as he makes final preparations at Savannah Boxing Club for his fight against brash New Yorker Paulie Malignaggi on ... more

Nov. 11, 2004: Diaz, right, goes after Julien Lorcy during their WBA Lightweight title fight. Diaz defeated the veteran Lorcy via unanimous 12-round decision to retain his title at the SBC Center in San Antonio. less

Nov. 11, 2004: Diaz, right, goes after Julien Lorcy during their WBA Lightweight title fight. Diaz defeated the veteran Lorcy via unanimous 12-round decision to retain his title at the SBC Center in San ... more

Juan "Baby Bull" Diaz made his professional boxing debut when he was 16 years old. In 10 years, he finished 35-4 with 17 knockouts and became the WBA, WBO and IBF world lightweight champion. While a pro, he also graduated from high school and got a degree from the University of Houston. less

Juan "Baby Bull" Diaz made his professional boxing debut when he was 16 years old. In 10 years, he finished 35-4 with 17 knockouts and became the WBA, WBO and IBF world lightweight champion. While a pro, he ... more