The 35-year-old said she's "very honoured" to be considered to play "an important and evolving icon."
Uploading a picture of herself in a swimsuit she wrote she's "proud to lead by example".
She ended her post with: "I say if I'm beautiful, I say if I'm strong. You will not determine my story. I will."
"Is it fat shaming if you know you're not fat and have zero shame in your game," she wrote.
"I am strong and proud of how I live my life and say what I mean and fight for what I believe in and I have a blast doing it with the people I love.
