Rebecca Adlington appears to stroke the leg of BBC co-presenter during Olympics coverage

THE CHEMISTRY between Rio 2016 pundits Rebecca Adlington and Mark Foster seems to have been diverting viewers' attention from the pool.

Sharped-eyed fans watching swimmers compete at the Olympics noticed commentator and former Olympic gold medallist Rebecca's hand slide on to Mark's leg.

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Viewers took to social media to comment on the chemistry between the swimmers.

Jason Scott Tilley (@TilleyEsquire) tweeted: "Rebecca Adlington so fancies Mark Foster."

JOPI (@JoePinder20) added: "Bloody hell @BBCSport can you just shift Mark Foster and Rebecca Adlington apart, I'm here to watch swimming not them touch each other up."

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Rebecca won gold in both the 400m freestyle and 800m freestyle at the 2008 Olympics and bronze in the same disciplines at London 2012.

Mark is a former world champion and among the most successful British swimmers of all time.