Geneva - IOC President Jacques Rogge says sports leaders must fight against corruption to prevent the type of ethics scandal shaking football's governing body FIFA.
Rogge said that English allegations about six senior FIFA officials receiving or demanding bribes for their Soccer World Cup votes are bad for the image of world sport.
Rogge says there's "always the threat" of unethical behaviour in sports management.
He stressed that claims made of FIFA corruption during a British lawmakers' inquiry on Tuesday must be backed "by solid proof."
The IOC has asked for its ethics commission to receive any evidence of wrongdoing by FIFA vice president and IOC member Issa Hayatou.
FIFA president Sepp Blatter, who's also an IOC member, was not accused of corruption.