American Olympic champion Gabby Thomas followed and heckled by gambler at Grand Slam Track meet

Three-time Olympic gold medalist Gabby Thomas said she was verbally abused at the Grand Slam Track meet in Philadelphia last weekend, the latest incident of harassment the American has reported this year.

​ Three-time Olympic gold medalist Gabby Thomas said she was verbally abused at the Grand Slam Track meet in Philadelphia last weekend, the latest incident of harassment the American has reported this year. Read More Breaking News, Latest News and Videos | CNN