Jacqui Oatley, the sports broadcaster, had to call the police after a football fan threatened to "cut" her in abusive tweets, it has emerged.
Oatley, the presenter and commentator, said she had twice taken action over online abuse during her career, after receiving shocking threats from members of the public.
The broadcaster became the first female commentator of BBC's Match of the Day in 2007, and now works with charities to promote women in sport.
In an interview with the Guardian, she said she had received her first of many letters insisting she had no right to talk about football just days after her debut shift.
"They just told me to watch myself," she said of letters she would find in her BBC pigeonhole. "That I should leave it to the men."
Now working for the BBC and ITV, as well as charity Women in Sport, Oatley said she is "really keen" for young girls to focus on the "positive aspects" of the job and try it for themselves.
She has also won fans for her no-nonsense Twitter presence, once telling a critic who said she should be "at home cooking tea" that she was a "bit busy doing my dream job".
She has, however, once contacted the police after a stranger on Twitter told her they would come to her house and "cut" her along with other "unmentionable" things.
She told the Guardian the police had tracked the sender down to a household, but could not be sure who exactly had sent it.
On another occasion, she contacted a school after catching a pupil tweeting extreme insults at her.
"I decided that, instead of ignoring it, I'd write to his school and speak to someone in the refereeing department at the FA," she said.
"I just wanted him to be made aware of his social media actions and how they could impact on his future career, rather than see him punished.
"All I'd done was make a factual comment about Robin van Persie's injury record at Arsenal."
Oatley spoke about online abuse at the end of Women's Sport Week, which aims to encourage more women and girls to get involved with sport.