A gender row over which athletes can compete in Olympic sports is a "minefield," but one thing is certain, rules cannot be changed mid-way through an event, the International Olympic Committee (IOC) said on Friday (August 2), after controversy over boxing.

Italian boxer Angela Carini pulled out of the Olympics mid-fight on Thursday (August 1) after she sustained a series of crunching blows from her Algerian opponent Imane Khelif, who last year failed a gender eligibility test at the World Championships.

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