A thrilling open-water swim in the River Seine kicked off Friday's Olympic action in Paris, which will later see Algerian gender eligibility row boxer Imane Khelif go for gold.

With just three days left of the Olympics, a packed athletics schedule features sprint relays, as the US seeks to maintain dominance in the 4x100m relay -- even without Covid-hit 100m champion Noah Lyles.

In the day's first event, 31 men plunged into the waters of the Seine for the 10k marathon swim, as officials again deemed the river clean enough to compete.

A hard-fought race finished with a sprint between Hungary's Kristof Rasovszky and Oliver Klemet of Germany, just won by the Hungarian, nicknamed the "Balaton Shark" after his club.

David Betlehem, also from Hungary, won bronze, pipping Italy's Domenico Acerenza by a fingertip after a gruelling battle against the strong currents in the Seine.

The water quality in the Seine has been a major talking point during the Games, with training sessions cancelled and the men's triathlon........

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