BBC Sport - Olympics 2016: Carlin's 13-hour day in pursuit of Rio gold

Jazz in the swim for Rio Olympics

Jazz Carlin has the Olympics on her mind and hopes a reward for arduous 13-hour training days will be a medal at Rio.

Sport Wales reporter Gareth Rhys Owen spends a day with the Commonwealth Games swim champion as Carlin prepares for an Olympic assault this summer.

Sport Wales is on every Friday night on BBC Two Wales and available on the BBC iPlayer.

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