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Roberts, nicknamed ‘The Rocket’, has been largely overshadowed by superstar Australian rival James ‘Missile’ Magnussen when it comes to media hype for the 100m freestyle.
But the 21-year-old Queenslander is one of the major reasons why Australia are red hot favourites to upstage the Americans in the 4x100m relay.
Roberts finished just 0.53 seconds behind Magnussen at the Olympic trials in March to secure the second individual swim. And the Australians have their fingers crossed the duo can fill the top two places on the podium at London.