Vitali Klitschko lands a punch on Shannon Briggs of the U.S. during their WBC heavyweight championship bout in Hamburg

WBC boxing champion Vitali Klitschko lands a punch on Shannon Briggs of the U.S. during their WBC heavyweight championship bout in Hamburg 

Hayden Panettiere, girlfriend of Wladimir Klitschko, attends the WBC Heavyweight Championship boxing

Hayden Panettiere, girlfriend of Wladimir Klitschko, attends the WBC
 Heavyweight Championship boxing bout between Vitali Klitschko and Shannon Briggs in Hamburg

Hayden Panettiere, girlfriend of Wladimir Klitschko

Natali Klitschko, wife of WBC boxing champion Vitali Klitschko, poses with Hayden Panettiere, girlfriend of Wladimir Klitschko, as they await the beginning of the WBC Heavyweight Championship boxing bout between Vitali Klitschko and Shannon Briggs

Kim Ju-hee fights against Jujeath Nagawa

Jujeath Nagawa, left, from the Philippines sends her right to South Korea's Kim Ju-hee in the seventh round

South Korea's Kim Ju-hee, left, fights against Jujeath Nagawa of the Philippines 

 Kim Ju-hee wearing her titles' belts celebrates after defeating
 Jujeath Nagawa of the Philippines in their women's light flyweight
 

Hayden Panettiere, girlfriend of Wladimir Klitschko cheers

 Hayden Panettiere, girlfriend of Wladimir Klitschko cheers before her boyfriend's heavyweight title fight against Samuel Peter

Wladimir Klitschko knocks out challenger Samuel Peter

 Wladimir Klitschko knocks out challenger Samuel Peter in the tenth round of their title fight in Frankfurt

Brazilian boxer David Lourenco celebrates after winning his welterweight 69 kg boxing final bout against Ahmad Mamadjanov

Brazilian boxer David Lourenco  celebrates after winning his welterweight 69 kg boxing final bout against Ahmad Mamadjanov of Uzbekistan at the Singapore 2010 Youth Olympic Games (YOG)