Italian transgender sprinter Valentina Petrillo, who participated in the Paris Paralympics, said author JK Rowling is "only concerned" about her using the female toilet. "She doesn't know anything about me," the 51-year-old added. This comes after Rowling called Petrillo a "cheat". Responding to Petrillo's remarks, Rowling said, "Women [are] concerned about the destruction of female...boundaries."