The International Olympic Committee (IOC) said on Thursday (August 1) the testosterone tests were not ‘perfect’ and demanded respect after the gender controversy over tests of Algerian boxer Imane Khelif.

The IOC has cleared the way for Khelif, as well as Taiwan's double world champion Lin Yu-ting, who lost her bronze medal at last year's World Championships after she failed to meet the criteria for the same reason, to compete at the Games.

The IOC decision caused a stir before the Games with some warning of safety concerns for the boxers' opponents.

Some sports have limited the levels of testosterone allowed for athletes competing in women's competition, while others ban everyone who has been through male puberty.

Boxing is run by the IOC in Paris as the IBA is no longer recognized by the IOC as the global sports body following a failure to implement governance and financial reforms.

The Algerian moved past Angela Carini when the Italian surprisingly abandoned their welterweight round of 16 fight after 46 seconds in the first round on Thursday, feeling pain in her nose.

(Production: Miguel Pereira, Isabel Infates, Luis Robayo, Elena Rodriguez)