Marcela Acuna of Argentina gestures to the crowd after her victory over Jackie Nava (L) of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna (L) of Argentina and Jackie Nava of Mexico exchange punches as referee Jorge Basile watches during their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna of Argentina walks next to referee Jorge Basile after knocking down Jackie Nava (R) of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna (R) of Argentina punches Jackie Nava of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna (L) of Argentina punches Jackie Nava of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna (R) of Argentina punches Jackie Nava of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna of Argentina raises her arms after knocking down Jackie Nava (R) of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna of Argentina gestures to the crowd after her victory over Jackie Nava (L) of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna of Argentina gestures to the crowd after her victory over Jackie Nava of Mexico in their World Boxing Council (WBC) Super Bantamweight title bout in Buenos Aires, April 30, 2009. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Jackie Nava (R) of Mexico and Marcela Acuna of Argentina pose after their weigh-in ceremony in Buenos Aires April 29, 2009. Acuna will fight against Jackie Nava of Mexico for the World Boxing Council (WBC) Super Bantamweight title on Thursday. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna of Argentina gestures as she stands on the scale next to unidentified officials during the weigh-in ceremony in Buenos Aires, April 29, 2009. Acuna will fight against Jackie Nava of Mexico for the World Boxing Council (WBC) Super Bantamweight title on Thursday. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Jackie Nava of Mexico gestures as she stands on the scale during the weigh-in ceremony in Buenos Aires, April 29, 2009. Nava will fight against Marcela Acuna of Argentina for the World Boxing Council (WBC) Super Bantamweight title on Thursday. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna (L) of Argentina and Jackie Nava of Mexico pose after their weigh-in ceremony in Buenos Aires, April 29, 2009. Acuna and Nava will fight for the World Boxing Council (WBC) Super Bantamweight title on Thursday. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Marcela Acuna (L) of Argentina and Jackie Nava of Mexico pose after their weigh-in ceremony in Buenos Aires, April 29, 2009. Acuna and Nava will fight for the World Boxing Council (WBC) Super Bantamweight title on Thursday. REUTERS/Marcos Brindicci (ARGENTINA SPORT BOXING)

Argentina's currently champion Marcela Acuna (R) and her challenger Danielle Bouchard of Canada wave to the public after their super bantamweight WBA boxing title bout at Luna Park Arena in Buenos Aires July 3, 2008. Acuna won the fight by points. REUTERS/Enrique Marcarian (ARGENTINA)

Argentina's champion Marcela Acuna (R) punches challenger Canada's Danielle Bouchard during their super bantamweight WBA boxing title bout at Luna Park Arena in Buenos Aires July 3, 2008. REUTERS/Enrique Marcarian (ARGENTINA)

Argentina's champion Marcela Acuna (R) throws a punch at challenger Canada's Danielle Bouchard during their super bantamweight WBA boxing title bout at Luna Park Arena in Buenos Aires July 3, 2008. REUTERS/Enrique Marcarian (ARGENTINA)

Argentina's champion Marcela Acuna (L) throws a punch at challenger Canada's Danielle Bouchard during their super bantamweight WBA boxing title bout at Luna Park Arena in Buenos Aires July 3, 2008. REUTERS/Enrique Marcarian (ARGENTINA)

Argentine Marcela Acuna (L), a bantamweight boxing world champion, battles against Brazilian Adriana Selles during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentine Marcela Acuna (L), a bantamweight boxing world champion, battles against Brazilian Adriana Selles during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentine Marcela Acuna (2nd L), a bantamweight boxing world champion, celebrates after defeating Brazilian Adriana Selles (R) during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentine Marcela Acuna, a bantamweight boxing world champion, celebrates after defeating Brazilian Adriana Selles during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentine Marcela Acuna (R), a bantamweight world champion, battles against Brazilian Adriana Selles during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentine Marcela Acuna (L), a bantamweight world champion, battles against Brazilian Adriana Selles during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentine Marcela Acuna (L), a bantamweight world champion, battles against Brazilian Adriana Selles during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentine Marcela Acuna (R), a bantamweight world champion, battles against Brazilian Adriana Selles during their bantamweight fight at the Conrad hotel in Punta del Este February 4, 2008. Acuna defeated Selles by unanimous decision. REUTERS/Andres Stapff (URUGUAY)

Argentina's Marcela Acuna throws a punch on the face of her challenger Colombia's Paola Esther Herrera (R) during their WBA super bantamweigh title bout at the Luna Park arena in Buenos Aires October 14, 2006. Acuna won by technical knockout in the first round. REUTERS/Enrique Marcarian (ARGENTINA)

Argentina's champion Marcela Acuna celebrates after defeating challenger Colombia's Paola Esther Herrera by technical knockout in the first round during their WBA super bantamweigh title bout at the Luna Park arena in Buenos Aires October 14, 2006. REUTERS/Enrique Marcarian (ARGENTINA)

Argentina's champion Marcela Acuna (R) celebrates after defeating challenger Colombia's Paola Esther Herrera by technical knockout in the first round during their WBA super bantamweigh title bout in Buenos Aires October 14, 2006. REUTERS/Enrique Marcarian (ARGENTINA)

Argentina's Marcela Acuna throws a punch on the face of challenger Colombia's Paola Esther Herrera (R) during their WBA super bantamweigh title bout at the Luna Park arena in Buenos Aires October 14, 2006. Acuna won by technical knockout in the first round. REUTERS/Enrique Marcarian (ARGENTINA)

Argentina's Marcela Acuna (R) throws a punch to her challenger Colombia's Paola Esther Herrera during their WBA super bantamweigh title bout at the Luna Park arena in Buenos Aires October 14, 2006. Acuna won by technical knockout in the first round. REUTERS/Enrique Marcarian (ARGENTINA)

WBA super bantamweight champion Marcela Acuna (L) of Argentina and her challenger Paola Esther Herrera of Colombia pose after their weigh-in in Buenos Aires October 13, 2006. Acuna and Herrera will meet for the WBA super bantamweight boxing title on October 14. REUTERS/Enrique Marcarian (ARGENTINA)

Argentine boxers Marcela Acuna (C), currently the WBA Super Bantamweight champion, and Omar Narvaez (L), the WBO Flyweight champion, and Narvaez's Colombian challenger Walberto Ramos pose before a news conference in Buenos Aires October 10, 2006. Acuna and Narvaez will defend their titles against Colombians Paola Esther Herrera and Ramos on October 14. REUTERS/Enrique Marcarian (ARGENTINA)

Argentine boxers Marcela Acuna (L), currently the WBA Super Bantamweight champion, and Omar Narvaez, the WBO Flyweight champion, pose before a news conference in Buenos Aires October 10, 2006. Acuna and Narvaez will defend their titles against Colombians Paola Esther Herrera and Walberto Ramos on October 14. REUTERS/Enrique Marcarian (ARGENTINA)

Marcela Acuna (R) of Argentina celebrates with Uruguayan actress Natalia Oreiro after winning her WBA Super Bantamweight title fight against Anays Cecilia Gutierrez of Colombia in Caseros, on the outskirts of Buenos Aires, August 13, 2006. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina gestures after winning her WBA Super Bantamweight title fight against Anays Cecilia Gutierrez of Colombia in Caseros, on the outskirts of Buenos Aires, August 13, 2006. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina (L) and Anays Cecilia Gutierrez of Colombia exchange punches during their WBA Super Bantamweight title fight in Caseros, on the outskirts of Buenos Aires, August 13, 2006. Acuna won the fight. REUTERS/Marcos Brindicci (ARGENTINA)

Anays Cecilia Gutierrez of Colombia looks on after losing her WBA Super Bantamweight title fight to Marcela Acuna of Argentina in Caseros, on the outskirts of Buenos Aires, August 13, 2006. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina (R) punches Anays Cecilia Gutierrez of Colombia during their WBA Super Bantamweight title in Caseros, on the outskirts of Buenos Aires, August 13, 2006. Acuna won the fight. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina (L) punches Anays Cecilia Gutierrez of Colombia during their WBA Super Bantamweight title in Caseros, on the outskirts of Buenos Aires, August 13, 2006. Acuna won the fight. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna (R) of Argentina celebrates with Uruguayan actress Natalia Oreiro after winning her WBA Super Bantamweight title fight against Anays Cecilia Gutierrez of Colombia in Caseros, on the outskirts of Buenos Aires, August 13, 2006. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina gestures after winning her WBA Super Bantamweight title fight against Anays Cecilia Gutierrez of Colombia in Caseros, on the outskirts of Buenos Aires, August 13, 2006. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina (L) and Anays Cecilia Gutierrez of Colombia exchange punches during their WBA Super Bantamweight title fight in Caseros, on the outskirts of Buenos Aires, August 13, 2006. Acuna won the fight. REUTERS/Marcos Brindicci (ARGENTINA)

Anays Cecilia Gutierrez of Colombia looks on after losing her WBA Super Bantamweight title fight to Marcela Acuna of Argentina in Caseros, on the outskirts of Buenos Aires, August 13, 2006. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina (R) punches Anays Cecilia Gutierrez of Colombia during their WBA Super Bantamweight title in Caseros, on the outskirts of Buenos Aires, August 13, 2006. Acuna won the fight. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina (L) punches Anays Cecilia Gutierrez of Colombia during their WBA Super Bantamweight title in Caseros, on the outskirts of Buenos Aires, August 13, 2006. Acuna won the fight. REUTERS/Marcos Brindicci (ARGENTINA)

Marcela Acuna of Argentina (L) and Anays Cecilia Gutierrez of Colombia pose after their weigh-in ceremony in Buenos Aires August 11, 2006. Acuna and Gutierrez will fight for the WBA Super Bantamweight title on Saturday. REUTERS/Enrique Marcarian (ARGENTINA)

Marcela Acuna of Argentina (L) and Anays Cecilia Gutierrez of Colombia pose after their weigh-in ceremony in Buenos Aires August 11, 2006. Acuna and Gutierrez will fight for the WBA Super Bantamweight title on Saturday. REUTERS/Enrique Marcarian (ARGENTINA)

Anays Cecilia Gutierrez of Colombia (R) prepares for her weigh-in ceremony beside her rival Marcela Acuna of Argentina in Buenos Aires August 11, 2006. Acuna and Gutierrez will fight for the WBA Super Bantamweight title on Saturday. REUTERS/Enrique Marcarian (ARGENTINA)

Marcela Acuna of Argentina (L) and Anays Cecilia Gutierrez of Colombia pose after their weigh-in ceremony in Buenos Aires August 11, 2006. Acuna and Gutierrez will fight for the WBA Super Bantamweight title on Saturday. REUTERS/Enrique Marcarian (ARGENTINA)

Daisy Padilla, of Colombia, is helped after losing against Argentina's Marcela "Tigress" Acuna during their Women's International Boxing Association (WIBA) super bantamweight title bout, in Buenos Aires' Luna Park arena, May 26, 2004. Acuna retained the crown after winning in the first round by technical knock out. REUTERS/Enrique Marcarian EM

Argentina's Marcela "Tigress" Acuna (L) throws a punch Colombia's Daisy Padilla during their Women's International Boxing Association (WIBA) super bantamweight title bout, in Buenos Aires' Luna Park arena, May 26, 2004. Acuna retained the title after winning in the first round by technical knock out. REUTERS/Enrique Marcarian EM

Argentina's Marcela "Tigress" Acuna celebrates after beating Panama's
Damari Pinock Ortega in their Women's International Boxing Association
(WIBA) featherweight bout, at Buenos Aires' Luna Park arena, December
6, 2003. Acuna won the title in the sixth round by technical knock out.
REUTERS/Enrique Marcarian

EM/HB

Argentina's Marcela "Tigress" Acuna (L) raises her fist after beating
Panama's Damari Pinock Ortega for the Women's International Boxing
Association (WIBA) featherweight title, in Buenos Aires' Luna Park
arena, December 6, 2003. Acuna won the title in the sixth round by
technical knock out. REUTERS/Enrique Marcarian

EM/.HB

Uruguayan referee Anibal Andrade (R) stops the fight between
Argentina's Marcela "Tigress" Acuna (L) and Panama's Damari Pinock
Ortega, for the Women's International Boxing Association (WIBA)
featherweight title, in Buenos Aires' Luna Park arena, December 6,
2003. Acuna won the title in the sixth round by technical knock out.
REUTERS/Enrique Marcarian

EM/HB

Argentina's Marcela "Tigress" Acuna poses during an official weighing
session at the Buenos Aires' Luna Park arena, December 5, 2003. Acuna
will fight against Panama's Demaris Pinock Ortega for the Women's
International Boxing Association (WIBA) featherweight title bout on
December 6. REUTERS/Enrique Marcarian

EM

Panama's Damaris Pinock Ortega poses during an official weighing
session at the Buenos Aires' Luna Park arena, December 5, 2003. Pinock
Ortega will fight against Argentine Marcela Tigress" Acuna for the
Women's International Boxing Association (WIBA) featherweight title
bout on December 6. REUTERS/Enrique Marcarian

EM

Argentina's Marcela "Tigress" Acuna (R) and Panama's Damaris Pinock
Ortega pose during an official weighing session at the Buenos Aires'
Luna Park arena, December 5, 2003. Acuna and Pinock Ortega will fight
in the Women's International Boxing Association (WIBA) featherweight
title bout on December 6. REUTERS/Enrique Marcarian

EM