A group of boxers and athletes have come together to support the 'No Means No' campaign in the wake of the tragic death of Sarah Everard earlier this month.
"I want to be part of the campaign because as a strong independent female with a public profile, I believe it’s important to give others a voice and a platform," said Rankin.
"I stand with my sisters and, as a woman and a mother, No Means No," said Jonas, who will challenge Katie Taylor for the undisputed lightweight world title on 1 May.
The campaign is being led by sports agent Sonia Randev, who works with several of Britain's leading female boxers.
"The importance of us all coming together is because our unity shows greater strength," said Randev. "It has taken a young woman to lose her life because she was simply walking home.
"We have been speaking up for years for women to be treated fairly and feel safe.
"We shouldn’t have to ask to feel safe. These are human rights. Things have to change and it needs to change now."
Join our new commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies