The biggest tennis title of Leylah Fernandez’s career arrived at the D.C. Open on Sunday with the help of a terrific backhand, some superb returning — and energy courtesy of

Former world No 9 labels Leylah Fernandez as a ‘threat’ at the upcoming US Open after Citi DC Open title victory CoCo Vandeweghe believes that Leylah Fernandez is a ‘threat at the US Open’ after the Canadian lifted the Citi DC Open title, with Steve Johnson adding that he predicts ‘big things’ for the 22-year-old.