Athletics: Double Olympic sprint champion Marion Jones has branded Jacques Rogge "ignorant" following comments about her athletics career attributed to the IOC president.

Rogge reportedly suggested Jones should be more careful about who she mixes with in athletics circles.

The US star has been linked with the BALCO organisation, which is under investigation amid allegations it supplied performance enhancing drugs to some of American sport's biggest names.

Jones has constantly declared her innocence of ever using drugs.

Speaking before tonight's IAAF Super Grand meeting in Ostrava, Jones - the reigning Olympic 100 metres and 200 metres champion - said: "I've been aware of the comments Mr Rogge made and I think it's an extremely ignorant comment for him to make, not knowing the circumstance and not knowing the situation."