Watch LivePremier League on StanrightArrowSportSport VideosThis was published 11 years agoFederer, Hewitt take rivalry to the high seasJanuary 12, 2015 - 7.00amPowered by1 / 10You can take the stars from the tennis court but you can’t take the rivalry out of two competitive warriors.Roger Federer and Lleyton Hewitt continued their long battle in one of the strangest arenas when they duked it out on the Sydney Harbour.The pair hit across the water from two speedboats as they cruised past some of Australia’s most iconic landmarks.It’s unclear whether there was a winner when they returned to dry land, but the two stars certainly had their fun on the high seas.Attribution: Not Supplied2 / 10The pair hitting tennis balls between the two vessels.Attribution: Not Supplied3 / 10Cruising past some of Sydney's famous icons.Attribution: Not SuppliedAdvertisement4 / 10Federer had a steely focus despite the strange surroundings.Attribution: Not Supplied5 / 10He recently claimed his 1000th win in Brisbane.Attribution: Not Supplied6 / 10But Hewitt wasn't one to be left in Federer's wake.Attribution: Not Supplied7 / 10Despite being knocked out in the first round in Brisbane.Attribution: Not Supplied8 / 10The stars had all the shots.Attribution: Not Supplied9 / 10But it's unsure if their sea legs kept them steady or not.Attribution: Not Supplied10 / 10The duo will meet again in the first FAST4 event in Sydney.Attribution: Not SuppliedPrevious1 of 1NextView more galleriesgallery13OpinionThe MoleTeam of the Week: ‘Devastating’ performance puts finals rivals on noticegallery14OpinionThe Mole‘World’s best centre’ turning NRL title race on its headgallery14OpinionThe Mole‘Reece who?’: Broncos bargain buy spoils legend’s farewell gamegallery13OpinionThe MoleTeam of the Week: Gun poised to ‘set finals alight’ after bashing BroncosMost viewed in SportCoach’s frustration as airlines slug Freo fans for Sydney finalNRL finals RECAP: Hynes stamps his moment as Sharks advanceEels superstar Addo-Carr allegedly returns positive drug test‘It won’t stop’: Bennett unloads on Bunker after Souths exitMore to explore