Cruz Hewitt - the 17-year-old son of former world number one Lleyton Hewitt – earned his first ATP victory in his main singles draw debut. AdvertisementAdvertisement AdvertisementHis maiden win came at the Washington Open – a competition his father won in 2004. Hewitt could next play fellow Australian Alex de Minaur, the top seed and defending Washington champion. Hewitt junior copied a famous celebration from his father after the victory - a right arm bicep curl. AdvertisementAdvertisement Advertisement"He just always did it and when I was little I've just always seen it," Hewitt said.