Coco Gauff says insane wave of racist abuse followed disputed point at China Open

American stopped rally after being distracted in matchSinner confirms he is out for rest of year due to injuryCoco Gauff said she received an insane amount of racist comments on social media following a controversial point in her China Open match against home player Sun Xinran.Gauff stopped a rally after electronic advertising boards lining the court flickered during a point late in the first set of her 7-5, 6-1 third-round victory over Sun, a 16-year-old who recently won the US Open junior titl...