Then at 5-3, while Raducanu was serving for the match, she slid on the court chasing a ball to her backhand side, bloodying her left knee. A trainer came out to put a white bandage on the cut and, during a delay of more than four minutes, Fernandez -- a 19-year-old left-hander from Canada ranked 73rd -- spoke to chair umpire Marijana Veljovic.